Playstation Move Motion Controller. Looks Familiar....
Joystiq has a short write-up here, with more details supposedly coming this evening following a press conference. This is the same item that was delayed earlier this year to give developers more time to, well, develop for it.
If it works, we have a hi-res Wii, it looks like. Would be nice.
EDIT: a bit more detail from DailyTech, although they don't cite their source.