Why couldn't iMessage work with non iOS/Mac devices? Seems like Apple could really open up in the budget market if their devices could negate the need for a texting plan.
The problem is hooking it into the SMS network. iMessage will sent "texts" to other registered iPhone users outside the SMS interchange network--think like skype using internet for "phone" calls. But if you wanted to send iMessage to your buddy on a regular phone, it will have to go at least through his carrier if not both yours and his.
You could set up some sort of registration for iMessage connectivity and run it all through the data network, but then "dumb" phone users would have to find a way to connect into that.
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Can you still do this? I tried and was told that either I needed a play or would be charged per text. I can of course control text messages I send out, but not those who send to me because they just send it to my cell number.
Yes. I have all SMS blocked. Of course, people who text me may think it's getting through.