Apple is keeping itself busy. Along with the 10.5.2 update to Mac OS X Leopard and a new reference release of Aperture 2.0, the company quietly made available the free new Take Two software upgrade for Apple TV on Tuesday. Here's a look at how Apple TV compares as a living room media player and source of HDTV content, what's new in the software upgrade, and how well the device achieves its goal of bringing iTunes media to home theaters in its second try at inventing itself.