For those who don't wan to update to iOS 6, is it possible if extracting ios 6 maps and siri files from the respective device, converting from .app to ipa and install via e.g installous. Siri maybe a little harder, but apps like maps, passbook shod be alright.. Anyone on iphone 4s iOS 6 mind extracting their map and passbook .app/ipa here to test it out? Thanks in advance. PS: If this method works, once iOS 6 is Jailbroken, the native YouTube app can also be ported over.