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Safari benchmark - 2.0 is faster than 1.1.4





There is not much defference between Safari 1.1.4 and 2.0. But Under the hood, MobileSafari 2.0's performance is hugely improved over 1.1.4. Everything related to web surfing feels faster, web pages consistently load faster on 2.0, both via Wi-Fi and EDGE. This has nothing to do with the new iPhone 3G hardware — this is about dramatic performance improvements on original iPhones upgraded to the 2.0 OS.

Using MobileSafari simply feels faster, especially with web applications. Feel is by nature subjective, but JavaScript benchmarks back this up.

In August last year, Craig Hockenberry posted a few simple benchmarks to compare the iPhone's processing power and JavaScript interpreter against Safari 3 running on a Mac with a 1.83 GHz Core Duo. At that time, the current version of the iPhone OS was 1.0.1. Here are the results of those same benchmarks on original iPhones running the 1.1.4 and new 2.0 OS versions, with Hockenberry’s 1.0.1 results included for comparison:

Test 1.0.1 1.1.4 2.0 Vs. 1.0.1 / 1.1.4
100,000 iterations 3.209 1.096 0.145 22× / 8×
10,000 divisions 0.413 0.181 0.029 14× / 6×
10,000 sin(x) calls 0.709 0.373 0.140 5× / 3×
10,000 string allocations 0.777 0.434 0.133 6× / 3×
10,000 function calls 0.904 0.595 0.115 8× / 5×

The last column shows how many times faster the 2.0 version of MobileSafari was versus 1.0.1 and 1.1.4. The same results, charted (smaller bars are faster) can be viewed above.

The results are obvious. WebKit JavaScript performance has improved steadily and significantly in just one year, with a huge jump between 1.1.4 and the new 2.0.0. In side-by-side page loading tests between two original iPhones running 1.1.4 and 2.0.0, the new version consistently finished at least a few seconds faster.

For all the hubbub regarding the new App Store, most “iPhone software” runs in the web browser. But improvements in WebKit performance often help native iPhone app performance, too — a slew of my favorite native iPhone apps have built-in WebKit browsers (e.g., NetNewsWire, Twitterrific, Instapaper, and Cocktails). When WebKit performance improves, any app that uses WebKit improves, and WebKit improved a lot between iPhone 1.1.4 and 2.0.0.

via daringfireball.net




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iRinger - create your own ringtone (free)



iRinger creates free ringtones for your iPhone from virtually any music or video file you own. Even YouTube videos! iRinger exports ringtones to iTunes, so there is no need to "jailbreak" your iPhone. You will be creating ringtones in seconds. It's that simple. Here is a video tutorial:

Feature:

  • FREE
  • Three Steps: Import, Preview then Export. Done.
  • Convert virtually any audio format into an iPhone ringtone
  • Extracts audio out of video
  • Choose which section of the audio you want to hear
  • Adjust ringtone length, volume, fade in, fade out and loop gap
  • Export to iPhone ringtone format and import right into iTunes
  • Export to iPhone using SCP/SFTP and skip using iTunes
  • Use audio effects: Delay, Flanger, Boost, Reverse, etc.
  • Runs on all versions of Microsoft Windows including Windows Vista
  • Requires iPhone firmware 1.1.2 or newer, iTunes software 7.5 or newer
  • Works with the new iPhone 3G!

Download here: iRinger.exe. Developer's site: www.iringer.net

Here is an advanced video tutorial, it shows how to use some advanced features:


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EDGE vs 3G



During WWDC 2008 keynote Steve Jobs compared EDGE and 3G by downloading the same site in Safari on both old and new IPhones. Guys from CNet performed similar testing:

The results are 31 seconds with IPhone 3G and 53 seconds with old IPhone (EDGE). Quite impressive.

PS: By the way. They said "I'm done" a bit slow. Progress bars were done in 29 and 49 seconds correspondingly.




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Wednesday, July 16th, 2008. 17:02

IPhone 3G first look video



Engadget published a video about IPhone 3G. They start with opening the box and continue with launching the applications and using GPS. Take a look:




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Monday, July 14th, 2008. 22:04

JavaSysInfo - another sample GUI Java application



javasysinfo.png

This is another simple Java GUI application for the IPhone/IPod from Java Flavor Weblog. It simply shows Java system information on iPhone/iPod touch. It uses Java, JocStrap and GNU Classpath.

This application can be installed through Installer. Just add the repository http://javaflavor.cocolog-nifty.com/apptapp/. The application can be found in Java section and is called JavaSysInfo. Or just download it here: javasysinfo-092.zip. The package includes compiled class files, source java files and runnable script with an icon. Here are the sources: JavaSysInfo and JavaSysInfoController.

Note that JocStrap applications, including JavaSysInfo, currently require JocStrap, UICaboodle, JamVM, GNU Classpath, GNU Classpath Tools, Apache APR, libffi and BSD Subsystem. In most cases all this was installed during Java on IPhone installation.




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Java GUI on IPhone (example)



During Java instalation there was sample programm installed. It is called HelloJava. It is a bit more complicated than basic console HelloWorld-type application, that we tried to compile and run during this tutorial. HelloJava uses gui and SQLite. It uses several classes, that are bridges to IPhone's functionality (GUI, sound, SQL, etc). But all that it does is it reads contacts' first and last names from IPhone's database (throught SQL select statement) and shows them on the screen in GUI mode. It also produses simple sound in the end.

Here is a screenshot of the icon and application itself:

hellojava1.jpghellojava2.jpg

The application consists of several files:


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Tutorial: compile and run Java application on the IPhone



Run

This is a tutorial, that shows step by step how to use installed Java on the IPhone. Just in case you do not have Java installed on your IPhone there is a tutorial how to do it.

What we need is a working jailbraked IPhone with Java Installed. I used latest firmware 1.1.4, unlocked, jailbreaked and customized by winpwn.

Step 1: Create simple Java application, compile and run.


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Tutorial: install and use Java on the IPhone



With this tutorial you will be able to install Java on the IPhone, compile and run simple Java applications using IPhone.

I decided to split this tutorial into two different ones. So here they are:

Have fun and leave comments.




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Java VM for IPhone



JamVM is a new Java Virtual Machine which conforms to the JVM specification version 2 (blue book). In comparison to most other VM's (free and commercial) it is extremely small, with a stripped executable on PowerPC of only ~200K, and Intel 180K. However, unlike other small VMs (e.g. KVM) it is designed to support the full specification, and includes support for object finalisation, Soft/Weak/Phantom References, class-unloading, the Java Native Interface (JNI) and the Reflection API.JamVM currently only includes an interpreter (keeps it small). However, the interpreter is highly optimised, and performance is on par with a simple JIT. As most of the code is written in C it is easy to port to new architectures.


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Wednesday, May 28th, 2008. 15:29

Skype for the IPhone



There are so many posts everywhere on the internet about Skype and the IPhone. On each IPhone forum it is possible to find something similar to "Is there a version of Skype for the IPhone?". And the answer was NO. There are some workarounds, but it's not what users want. However there is a great possibility, that all IPhone users will hear quite soon "YES there is Skype for the IPhone".

Skype announced a beta mobile version. It will be possible to chat, receive and make calls to Skype users and more. And it was written in... Yes, Java. So when Java will be avaliable for the IPhone all the users will be able to use Skype.

More information about Skype Mobile can be found here.

You can find out more about iphone development at Oysterlabs.




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Tuesday, April 29th, 2008. 17:06

Java "Hello world" continued



Here is a photo of the real IPod (same with IPhone) running a simple Java ME application:

Java on the IPhone




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Monday, April 28th, 2008. 17:25

Java "Hello world" on the IPhone



Hinkmond Wong (Java Micro Edition group at Sun Microsystems) recently published a wonderful screenshot on his blog:

iphone-java-me_sm.jpg

This is the simpliest Java application running on the IPhone simulator. The only thing this application does is it prints "Hello world.". Well done! The whole world is looking forward to see more.




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Tuesday, April 22nd, 2008. 15:13