I playing around with ipad and iphone last night. I was able to send messages back and forth between both ipad and iphone. Which I wasn't sure was possible. I wondering how (if it all) is possible to have a text conversation on an iphone and then goto ipad and continue the conversation keeping same coversation stream? Not to mention I wondering how I start a conversation with iPad. Can I send a message to a phone number address if it is (1) an iphone and (2) be updated with iOS 5. If want send an message to a given iTouch or iPad I need have there Apple id email addy? Thoughts?