Apple fanboys will no doubt be once again praying to the god of black polo neck jumper as Steve Jobs announced at the MacWorld Expo here in San Francisco a new ultra-thin sub-notebook that manages to be small and also as powerful as a normal laptop. 

The new MacBook Air, which is will cost $1,799 and is expected to land on earth in two weeks, was by all accounts the biggest announcement that Jobs made in a 90-minute keynote at Macworld yesterday. (Of course we managed to bring you the news of this earlier this month).

Jobs pulled the new product from a manila envelope. The device measures 0.16 of an inch at the thinnest point of its keyboard-side edge and 0.76 inches at the hinge. It weighs about three pounds and has the much-touted multitouch trackpad.

"When you first see MacBook Air, it's hard to believe it's a high-performance notebook with a full-size keyboard and display. But it is," said Jobs.