News tagged ‘Wi-Fi’

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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Free AT&T Wi-Fi for IPhone

"AT&T knows Wi-Fi is hot, and free Wi-Fi even hotter, which is why we are proud to offer iPhone customers free access to the nation's largest Wi-Fi hotspot network with more than 17,000 hotspots, including Starbucks. Now users can relax and access music, e-mail and web browsing services with their favorite blend in hand from the comfort of their favorite location."

AT&T provides an online tool to find a Wi-Fi spot near you.

This is about Wi-Fi spots in the US. AT&T has access (company-owned, branded and roaming) to over 70,000 Wi-Fi hotsport in 89 countries and 389 airports.


Unfortunately, everyone got too excited over nothing - the Wi-Fi is still not available, and the “document” was a mistake. Here is an email from one of their spokespeople:

  • We have not made any announcement regarding free Wi-Fi and iPhone. The webpage was posted in error and is being removed. Wi-Fi is a real differentiator for AT&T and it is our intention to make it available to as many customers as possible, but we have no announcement at this time.


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Written by admin

Saturday, July 19th, 2008. 17:46

More IPhone 3G internals photos

Portelligent and Semiconductor Insights published a document describing interals of IPhone 3G. Techonline described the details. (Previous IPhone 3G internals photos can be viewed here)

Commuunications (3G/GSM) are on Infineon chips. One for GSM/GPRS/EDGE, another for WCDMA/HSDPA (3G). GPS module is not SiRF as we all thought. Apple uses PMB 2525 Hammerhead II. The Hammerhead II integrates an assisted-GPS (A-GPS) baseband processor with a low-noise GPS RF front end and multi-path mitigation to avoid large errors in urban environments.

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iPhone Configuration Utility

iPhone Configuration Utility lets you create configuration profiles for your devices. There are two versions of iPhone Configuration Utility—one is a Mac OS X application and the otheris a web-based version for Mac OS X or Windows. Application-based looks a bit different, has more functionality, but web-based could be used on windows platform.

After installation of Web utility open a web browser and go to: http://localhost:3000. Log in with the user name admin and the password admin. You're all set. Create profiles and distribute them by email or web.

There are several tabs here:

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Written by admin

Saturday, July 12th, 2008. 22:58