At 3.9 inch by 3.9 inch by 0.9 inch, the Apple TV (Second Generation/Late 2010/Black) was designed to make it easy to rent movies and TV shows from Apple as well as stream movies, shows, photos and other content from a Mac, PC, iPod, iPhone or iPad all at 720p and 30 FPS (it does not support 1080p). It has built-in support for Netflix, YouTube, Flickr and MobileMe streaming as well.

Connectivity includes HDMI, optical audio, 10/100Base-T Ethernet, and a single Micro-USB port "for service and diagnostics" -- and hacking, no doubt -- as well as 802.11a/b/g/n wireless networking. Works great to give stereo speakers AirPlay capability.