CrunchGear

I may just be misreading your post, but the Wireless Gaming Receiver is for connecting the wireless peripherals to your PC.

“Xbox 360 Wireless Gaming Receiver for Windows. By plugging the compact receiver into a Universal Serial Bus (USB) 2.0 port on a PC, gamers can use Xbox 360 wireless accessories on their Windows-based computer (ERP $19.99 U.S.**, available in late December).” -via the microsoft press release

What’s strange is that they’re selling a PC version of the XBox 360 controller for $50 when you can presumably just buy the $20 Gaming Reciever and plug it into your PC to get the native 360 controllers working.

The headset and camera look interesting though.