I have the latest revB 1.8ghz, 128 ssd MBA. Does your fan blow often? Mine does, whenever I start to do even the slightest tasking work, such as having many web pages open, drawing software, typing in word etc., for sure when I connect the 24" ACD the fan is running ... The fan is also always going when on my lap or outside in the sun ... Is everyone else's experience the same? My MBP is whisper quiet all the time.