The wireless range supposedly reaches 30m or 100ft through walls and it can handle uncompressed 1080p videos at 60Hz. Apart from the wireless functionality, you're basically looking at a stock GTX 460 1GB with 336 CUDA Cores, a 675MHz graphics clock, 1350MHz processor clock, 1800MHz memory clock, and a 256-bit memory interface.
It also has DVI, DisplayPort and mini-USB ports on the rear I/O plate, as well as a 6-pin PCIe power connector. Standard GTX 460s only support two displays at once and we imagine WHDI connectivity doesn't change that, so keep that in mind if you want to run two desktop monitors with your TV simultaneously.
The card is backed by a two-year warranty and it's slated for a European launch with no word on US availability or pricing.