Popular iOS developers Stroughton Smith (@stroughtonsmith) and Grant Paul (@chpwn) seemed to have cracked the issues that were present in porting Siri onto older iOS devices (the iPhone 4 and the current generation iPod Touch). They managed to bypass earlier authentication issues with Apples servers and have recently tweeted their success. There is now picture proof showing Siri working via Wi-Fi (the AirPlane Mode icon means that 3G is turned off, but it is possible to turn Wi-Fi back on even in AirPlane Mode, which is what they did).

Their success comes just a few weeks after the release of the iPhone 4S. Siri was meant to be an exclusive feature to the iPhone 4S but the developers have seemed to work around it. Apple’s back-end systems check for iPhone 4S devices before processing Siri queries and the developers have found a solution to the limitation. The hack is based on moving compiled code components from a 4S to the older units.

You can watch a video of it below:

Stay tuned for more information as it develops.

Source: @stroughtonsmith, @chpwn