Despite what most companies do after a launch, Motorola is lowering orders for the Xoom in spring and may even be switching devices entirely, part suppliers claimed Tuesday. It was still on track to ship 800,000 by the end of March, but those numbers are now expected to drop rapidly. The alleged sources told Digitimes that it would ship about 300,000 of the Android 3.0 tablets in April, less than that in May, and eventually stop outright in June.