The SonyEricsson K700 is available through their dev shop here. You need to be a core or core+ member to shop it (which is kind of an investment in itself).
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Category: Mobile
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SonyEricsson S700 Whitepaper
Got the link to SonyEricsson S700 Whitepaper (you need to register) through SEs newsletter. It looks like one sweet piece of machinery. Just wish they could forget about the MemorySticks and go with SD like everyone else.