You'll also want to remember to turn on Wi-Fi since Face Time doesn't work on AT&T or Verizon's 3G networks.
Calls made from the Mac Book Air to the i Phone 4 and the i Pad 2 video looked clean, but the edges were still fuzzy.
The worst picture quality we noticed was while calling an i Pad 2 from an i Phone 4.
The latest i Phone captures video that's fine for another i Phone's 3.5-inch display.
The i Pad 2's 9.7-inch display must scale up video from the i Phone's camera, and the result is scratchy, pixelated video on the tablets's screen.