Sorry if this has already been posted, but if not, here's one for your memory bank. Today I took the plunge and overclocked a friends Rev.B 1.25Ghz Mac Mini (with his permission of course ). Following the guides on the internet I must say that as it uses the same CPU and logic board, it is safe to overclock to 1.42Ghz. I didn't try any other modes, and for a couple of hours the system was stable importing video into Final Cut Express. It still is working. So, if anyone wants to overclock one of these beauties and is worrying about the new Mac revisions, don't panic because its all the same as the other Rev.A guides That's something else to put on my CV to Apple I suppose.