We’ve been talking about a Siri port ever since iPhone 4S has been released. The long awaited tweak from @chpwn was just released recently. It goes by the name of Spire; it allows anyone to acquire the necessary files for a legal Siri port to work. A Siri proxy with an iPhone 4S is still required, however this is the first step to getting Siri ported to unsupported devices. Check below for the blog post and source.

Spire is my (along with Ryan Petrich) new tool for installing Siri on previously unsupported, but jailbroken, devices. Spire is a small download, but while installing it will download Siri itself (directly from Apple). Spire is available in Cydia right now — go get it! This will use about 100 MB of data, so please connect to Wi-Fi before installing.

However, Spire is not a complete solution. Apple still requires authorization to use Siri, so information from an iPhone 4S is still required. To insert this information, Spire allows you to enter your own proxy server address. By using this (ancient) SiriProxy fork, you can setup a proxy using your own iPhone 4S to insert the needed information reasonably easily. Other solutions for proxying Siri will be listed here as they are developed — perhaps that sort of proxy might be included in the main SiriProxy repository.

Spire uses a new method to obtain the files necessary for Siri, so it doesn’t have the copyright issues encountered by previous attempts. Similarly, rather than directing all traffic through a specific proxy server (and the associated privacy issues), Spire allows you to specify your own proxy server.

Thanks to planetbeing for PartialZip and Ryan Petrich for his fixes and improvements.

Follow this step by Step Guide to make Siri on your iDevice:

How To: Download And Install The Spire Cydia Tweak To iPhone, iPod Touch, iPad

Spire is available for free in Cydia…

via http://blog.chpwn.com/post/14689740472