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How big will the market be for Ultra Mobile PCs? Will it be larger than Tablet PCs (on the high end) or PDAs (on the low end), or will it just be a small, niche market? No one knows, but iRiver is hedging its bets and releasing the W10, its first UMPC. Coming in iPod-white, this handheld is more like a PC and less like its siblings, the PDA-like Disciple D10 and D20.

One noticeable difference between this UMPC and the competition is the inclusion of WiMax and the South Korean native WiBro. However, until the US deploys any type of WiMax, it's doubtful we'll see this device in its current form.

iRiver preps WiMAX UMPC [Reg Hardware]