Samsung Electronics has taken the wraps off a prototype of what is likely to be the most fully-featured PDA phone it has yet produced when it goes on sale early next year. The SPH-M400 is based on Pocket PC 2002 Phone Edition, Microsoft's operating system for PDA phones, and runs on CDMA 2000 1x EvDO networks. Such networks, which are already in commercial service in South Korea, are capable of data transmission at speeds up to 2.4 mbps. It was unveiled at Telecom Asia 2002, which officially opens here on Monday.
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