Siri has been the top feature in Apple iPhone 4S and is not available officially and legally on older Apple phones like iPhone 4 and iPhone 3GS, hackers have been trying to get a perfect port of the technology to older devices and it seems the progress is good. In some good development on the porting front a video has not been uploaded to Youtube showing Siri working on an Apple iPhone 3GS - full video after the jump.

The best thing about open-source and crowd-sourcing is that there is no limit to the amount of creativity and development a product/feature can achieve once subject to public development, thanks to SiriProxy Plugin hack independent developers are creating amazing stuff like controlling their rooms, computers, and even cars.

To get things a notch above iPhone Hacker robb created a "Siri Hack" for the Music Hack Day 2011, Robb used the SiriProxy and developed "Notorious Siri" plugin which raps the "Notorious B.I.G.’s Hypnotize song". Full video after the jump.

"Siri" - the only exciting new feature introduced in Apple iPhone 4S has now been hacked and decoded by developers allowing them to program custom handlers for different actions. The "Siri Proxy" hack allows developers to easily add functionality to Siri making it do cool voice controlled actions not built-in natively by Apple.

Developer's can now create "Siri Proxy Plugin's" allowing users to issue custom commands via the "Siri - voice assistant", an excellent demo is shown below where a "plugin" allows the developer to control his computer and a thermostat.

We have seen how Apple iPhone 4S compares to iPhone 4, here is another speed-test showing how iOS4 compares to the new iOS5 in mobile web-browsing tests.

While "Siri" - the Apple iPhone 4S voice-recognition virtual assistant, would be one of the most promising new feature of this new mobile device the iPhone 4S also greatly boosts the hardware specs when compared to the older iPhone 4 models.

While application launching is a basic task that doesn't show off the real potential of this new hardware's high-performance graphics and other capabilities, it is without a doubt "the most used" task when using a smart-phone. Here is an extensive video comparison between Apple iPhone 4S Vs iPhone 4 giving a good picture of the everyday performance improvements one should expect between the two devices.

Full-video after the jump.

While Google Android is eating away the Apple iOS dinner as it's already surpassed the gross usage numbers and new Android mobile-os powered devices are popping-out almost a few weeks, as not-expected Apple has let down it's fans by just releasing a not-so-major successor to company's flagship mobile phone "iPhone 4" - named "Apple iPhone 4S". As everybody was eagerly awaiting a brand new, feature rich "Apple iPhone 5" the rumors are now put to a rest as Apple's new phone (Apple iPhone 4S) is now officially unveiled and there is no iPhone 5 for the time-being.

Complete specifications of new Apple iPhone 4S with features, images, rates, availability, and videos posted after the jump.