So I have both an iPhone 4 and iPad 3 (and an iPad2 before that), both running iOS 5.1. I've tried to figure this out in the past but had no real luck. I was under the impression that, with iMessage, you can not only avoid text message charges by using wifi to send messages but also recieve said 'iMessages' accross multiple devices. So, for example, if my iPhone is charging in another room, and happen to have my iPad on me, and another iPhone owner sends me a text message, I'd be able to get it on both my iPad and iPhone and reply to it via either device. iMessage is tuned on, on both devices BTW. A very large percentage of the people I know all have iPhones, so this feature would be really useful. Is this possible? If so, how do I set it up? If it's not possible, it should be. It would make communication a lot easier when people are away from their phones, but are near another idevice. Any help is appreciated.