siri iphone 4

siri has not yet been released on the iphone 4 but a substitute has been released called sirious on cydia for jailbroken devices on ios 5 and is exeptional at doing its job. I highly recommend downloading although it may require a reboot which will require a tethred reboot if you have jailbroke on ios 5 and have a tethred jailbreak. click here for a guide on how to jailbreak.