Archive for 2008

Ifixit recently published an article, describing how they had disassembeled the new IPhone 3G. Quite impressive. Especially taking into account that they bought it in New Zealand (it was 12:00 July 11 there when it was 5:00am July 10 in the US). Here are the internals:

From top left to bottom right: Display glass, LCD, Main board and EMI shield, Antenna and battery, Back panel.

George Hotz published an annotated version of IPhone's motherborad:

More IPhone's internals pictures:

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The Apple's online store with applications for IPhone is opened. Here are some statistics provided by pinchmedia. They counted 559 applications - 421 of them paid, 138 of them free (7:00 PM EDT). Paid applications ranged in price from $0.99 to $69.99, with the most common price points being $0.99 (85 applications), $9.99 (82 applications), and $4.99 (62 applications). A bar graph of iPhone application price distribution can be viewed in the beginnings of this post. Of course every day there are going to be more and more IPhone applications avaliable in iTunes store.

Here are the news from Apple: "When the iPhone 3G goes on sale tomorrow, more than 500 native applications will be available on the revolutionary new App Store — including more than 125 free applications."

But the applications are already there!! Because in some parts of the world it is already July 11. And what is great, there are many free applications. For example, Remote, AIM, Google Mobile, NYTimes, Myspace Mobile.

Users can download applications directly from new IPhones or through iTunes.

The special version for IPhone was launched recently. This is a very nice online web client for poplular instant messanger Google Talk. The link is www.google.com/talk.

Features:
Chat with your Google Talk contacts in real time. Send and receive instant messages in chat sessions with your contacts. Move easily between multiple open chats.

View and search for your Google Talk contacts. See the availability and status message of your contacts and change your own status on the go.

Go off the record if you don't want to store your chats. Off the record chats are not stored on Gmail.

These two libraries that are needed for Java on IPhone were updated recently. Downloads are avaliable through Cydia Installer.

Jocstrap is a bridge between Java and Objective-C. UICaboodle is a JocStrap extenstion for the IPhone. Both are needed to write Java applications for IPhone.

There was an application called Apollo IM. It worked, but didn't work good - it hanged, dropeed connections, exited for no reason. Later there was MobileChat, which version 2.23-2 was much better than Apollo. It did work. It leasе I used it with ICQ many times. However it didn't have history and there were some problems with offline cyrillic messages.

Now there is AgileMessenger. It is quite popular, because it supports many phones (not just smartphones). Now it is avaliable for IPhone. The interface is good. Users can chat, send pictures, there is history. And history is saved even when you restart an application. There is even a traffic meter.

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Hello, everybody!

There were many visitors to Java4IPhone site recently. This is great! I like the idea, that this site is useful. Most visitors are from the US and Russia (since there are 2 languages supported). But I see quite a lot of interest from all over the world: Europe, China, India, even Kuwait and Maldives

So I decided to extend the site news to everything that is IPhone related. For those who is interested only in Java on the IPhone there is a category Java+IPhone with subcategory Java Applications.

Stay tuned and have fun.

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.

JamVM - Java Virtual Mashine for IPhone, has been updated. New version 1.5.1b2-17 is avaliable through Cydia Installer.

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:

The application consists of several files:

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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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This is a tutorial, that shows step by step how to install Java on the IPhone.

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

First of all I'd like to say we all want to use legal IPhones and operators. So everything written below is for testing purposes only . Hopefully this technology will be avaliable on all IPhones sold worldwide. You also might need to recover your IPhone, so make sure you backed up all your data. I personally did everything without any problems and needs to recover. Everything you do is your responsibility, etc...

So let's start, because it's worth it! It's just one evening and you will be able to create your personal Java application, compile and run it on the IPhone, and amaze all your friends .

There are two steps:

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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:

• Tutorial: install Java on the IPhone

• Tutorial: compile and run Java application on the IPhone

Have fun and leave comments.

Apple recently filed a new patent application (us20080122796ki). On more than 370 pages lots of new potential features and enhancements for IPhone’s hardware and software are described.

The most interesting Hardware part is a GPS receiver and a camera for video conferencing.

On a software level, Apple describes addition of a text messaging (chat), in-line multimedia content (Quicktime and Flash) in the Safari browser. Further welcome additions described in the publication would include a dedicated blogging client, Java software downloads, MMS picture and video messaging, support for voice-activated commands, audio capture, video conferencing and more.

“[0142]Examples of other applications 136 that may be stored in memory 102 include other word processing applications, JAVA-enabled applications, encryption, digital rights management, voice recognition, and voice replication. ”

It sounds like Apple wants Java to be on the 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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