The project i4Siri generally is supposed to port siri to iPhone 4 and iPod Touch 4G. Specifically we are looking to make a similar server like apple’s that runs and processes siri dictations just like apple exempt ours will NOT log personal data and it will not require regeneration of 4S keys every 24 hours.
As for the legality of out Siri port:
We are hoping to be able to make the install of this Siri port as easy as possible. It is going to be as easy as possible but also legal. Meaning we are planning writing a program that will extract the Siri files from 5.0.1 firmware and install them on your device. This will be an automated process. We hope to be able to have this for windows and mac but mac will be first. Part of it WILL be downloaded via Cydia.
It is illegal to distribute the siri files but if we download apple’s firmware and decrypt the files it is 100% legal. We hope to be able to bring a fully functional and legal port for all. This is the ultimate goal.