You know a device is due for a refresh when the only thing left to write about it is rumormongering of a possible upgrade. Today it's the turn of Apple Insider, citing sources in Taiwan, to declare that an 11.6-inch LED-backlit display will be headlining a long overdue update to Apple's MacBook Air. We've heard this scuttlebutt before, and the idea that the Air would be shrunken in order to better differentiate it from the MacBook Pro line carries a lot of believability, but we're still a little jaded from previous