AirParrot

Your Mac's Screen. On your AppleTV.

AirPlay Mirror your Mac's screen to AppleTV, wirelessly.

Requires OS X 10.6+ and AppleTV 2 or 3

Time-limited trial

AirPlay with ease
1) Choose the display 2) Choose the AirPlay device to mirror to. 3) Enjoy your video and audio.

Optimize
Adjust the quality versus speed performance, show the mouse cursor and adjust that nasty overscan.

Made for Cats
Built from the ground up to support the great things in OS X Lion while supporting OS X Snow Leopard. Win win.