How to Find Airplay-Enabled AppsS

Apple's got a convenient AirPlay-Enabled Apps section in the App Store for you to browse through, in case you want to test out your new iOS 4.3 to Apple TV functionality. I'm confused as to why Martha Stewart Makes Cookies needs AirPlay, but who's to say that it doesn't? (She'll cut you if you do.) [iTunes via 9to5Mac]