christmas gifted my partner with a craigslist iphone4, i put ios5 on it. it took a couple of texts between us but the text screen outline color went from green to blue. dont know how they detect it but:
blue is using iMessage and is free between apple products
green is using your providers SMS and will cost you
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If I ever get an Iphone or one of those silly products that bit of knowledge will come in handy. Thanks!
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iMessage differs from SMS in the sense that iMessages are unlimited and use your wifi or 3g connection to send a message and is not restricted to iPhones with the ios5, you can also use iMessage with with an iPod Touch and iPad.
My iPhone has become my mobile office, I have a small bluetooth keyboard so I can create rosters on the run, create documents, store reminders which all sync with iCloud and are ready when I get home or get to work. It also makes it so easy to keep in contact with my staff, other store managers, and our regional manager.
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