Twitter shut down yesterday, thanks to Bay Area technophiles when Steve Jobs unveiled the light as you know what MacBook Air at MacWorld.

20th Century Fox CEO Jim Gianopulos also also set hearts a-flutter when he announced the new DVD copy service now available for Fox titles on iTunes. Customers can copy newly-purchased DVDs to their iTunes library.

And Apple TV got a revamp as well. Jobs introduced the iTunes Movie Rental service--offering movies from Touchstone, Miramax, LionsGate, Fox, Warner Brothers, Walt Disney, Paramount, Universal and Sony for one time viewing on Apple computers and devices. The rental window will open up 30 days after the DVD release, with those titled priced at $3.99 and older titles at $2.99.

The existing Apple set-top box wirelessly streams videos and other multimedia from a user's computer to a TV. But the new model shipping in two weeks will let users rent or purchase content without a computer. Apple cut the box's price from $299 to $229 and said existing Apple TV owners could get the new features through a free software upgrade.

Idle thought: did the WGA know about this before the strike?