Say goodbye to the plastic MacBook: it's no more. The $999 11.6-inch MacBook Air is Apple's only entry-level machine now -- and with the bump to a 1.6GHz Core i5 processor, it's probably just as capable as the old 2.4GHz Core 2 Duo MacBook. It's sad, in its way, but it makes sense: we've actually been wondering why anyone would spend $999 on the white plastic MacBook with last-gen parts ever since the $1,199 13-inch MacBook Pro was updated. We'll see if Cupertino decides to re-use the "MacBook" moniker again sometime down the line, but for now your choices are all Pro vs Air.