i have iMessage setup on iphone 4s and also ipad2. i thought the whole idea was to continue the convo on either device however the previous part of any convo isnt on both devices. i seems that the iphone 4s keeps the entire convo even if i started it on the ipad2 however the ipad2 does not pickup what i say on the iphone4s nor does it pickup messages that i read on the 4s... any ideas?