If the Messages beta didn't satiate your desire for an early sample of OS X Mountain Lion, here's a way to start using another feature early. AirParrot is a new Mac app that lets you stream your computer's display right to your Apple TV over AirPlay, an ability built straight into Apple's forthcoming OS upgrade. There are a couple of caveats right now: it doesn't work with audio, and you won't be able to bypass any Apple TV passwords you may have set up, though both features are planned for free updates soon. We'd like to see how the quality holds up — AirParrot works by encoding your display output into H.264 video, meaning you'll likely see some compression artifacts or lag depending on whether you've prioritized speed or image quality in the preferences. The app is out now for $10, and will work on machines running Snow Leopard or Lion.