You are right and in some ways Calypso's patent is more valuable than the one you speak of. Without it the dual mode phones are of limited use and do not fully function to their capacity. This is where the future is, satellite/cell phone/wifi, no landlines, one number does it all. I would suspect a lot of people will get out once they make a good bit of money, but we won't know the upside until a number of deals are made.
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