It's a bit like Christmas when you were a kid. The Mac community is getting all excited about what Steve Jobs might have in his sack when he turns up at MacExpo in San Francisco in early January. It's pretty much agreed there's a new flat-panel iMac in there - but can we expect more? Fuelling the speculation is the fact he's brought his keynote Expo speech forward by a day, and extended it to two and a half hours. Full coverage in Online and here, natch.