Silverlight "Out of Browser" (or SLOOB) is in the v3 beta. It has some pretty severe limitations though before it will compete with AIR (can't run chromeless, n

Silverlight "Out of Browser" (or SLOOB) is in the v3 beta. It has some pretty severe limitations though before it will compete with AIR (can't run chromeless, no tray icon support, subject to crossdomain issues as it runs in a browser sandbox, no webcam/microphone support, and more. I think they're making a big mistake releasing a competitor for the world's best Twitter application platform by not supporting what would be needed to build a Twitter client with it.