the 360, though MS my try the value added approach its long over due to hit the next level down. 149 for 4g non kinect, 225 for 250 non kinect, 275 for 4g kinect and 350 for the 250 + kinect.
edit i just dont see how sony could afford one right now. witht the euro sliding under thier projections for the year, and it could slide much further a price hike seems more likely there, the dollar has sunk just a bit but not much vs the yen, but i dont think they could loss on the profits made there if any,
really what sony needs to do is somehow get the bank of central bank of japan to debase its currency which is not going to happen