Rumored Mac Mini refresh said to be Ion-based

People trading in salaciousgossip have been counting on an update of the Mac mini for ages now, with most of the rumors centering on it making its appearance at Macworld. Well, the festivities came and went without a peep about the mini -- but that hasn't stopped the rumors from swirling. The latest we're hearing is that the refresh will be built upon NVIDIA's new Ion platform, which houses a 9400M GPU -- the same graphics processor as the new unibody Macbooks -- and could mean an even minier mini than the one we already know. Tom's Hardware, the source of this newest rumor, also speculates on a March release date, though they're not guessing on the price just yet.