At today's Mac occasion, Steve Jobs announced that FaceTime for the Mac. It populates with people today from your Address book, and also you just click on them to create the connection no screen names or anything. It runs across Macs, iPod Touches and iPhone 4s (and assumedly the next iPad.)
There's no mention if it interfaces with iChat, too.
A beta release is going to be out at this time, so you'll be able to attempt it out quite soon. If you are looking to sell your iPad, get cash for Wholesale 8GB USB Flash, recycle your old iPad, or plain old do away with your utilized iPad, everbuying.com would be the place to go.
