i4Siri beta is working well and is available to doners, we hope that completed i4siri will be released for free very soon. i4siri can work on 3G data network. The new i4siri supports iphone 3gs, iPad 2, iPhone 4, and iPod Touch 4G. Watch below video for more.
You can visit i4Siri to try the beta version which is working only you need to donate more than 1$ and that it.