"In a confirmation for the ages, Dell spokesperson Andrew Bowins has clearly stated that the company is "developing mobile devices for China Mobile," giving the Round Rock powerhouse access to the biggest mobile subscriber base on the entire planet."
Scuttlebutt has it that the first Dell smartphone will run a version of Android, but given Dell's previous history with Windows Mobile there's always a chance that WM may fit in there somewhere. And even though China's the initial target market, I find it hard to believe that Dell would confine itself to marketing smartphone's there. I'd say there's more than an even chance we'll see Dell branded handsets elsewhere, and hopefully with Windows Mobile.