You can use Airfoil to stream to your AppleTV or Airport Express from any application you chose.
Logitech Touch vs Apple TV
There's a lot of talk about the demise of the Logitech Touch. I haven't heard much on Apple TV on this discussion board. Certainly it's a very attractive alternative for the many that have multiple Apple products in their homes and use iTunes. I'm interested in your thoughts on the pros and cons of Apple TV.