If I'm not mistaken though, you guys are talking about streaming media that's on your computer over LAN using devices that their own interfaces. The Windows 7 commercial shows
Intel WiDi which is a bit different: the TV duplicates your laptop monitor wirelessly.
As far as I can tell, it depends ony our computer, not your TV, and only three laptops have it. And all it really does is replaces an HDMI cable.