"Microsoft's hardware is generally excellent, and the Remote Keyboard for Windows XP Media Center Edition certainly follows that tradition. With the notable exception of the Pointer functionality, which is workable if a bit painful, the Remote Keyboard works as advertised and provides an elegant replacement for the lousy wireless keyboards and mice I've tried over the years. You won't want to replace your Media Center remote with this device, but as an add-on to that remote, the Remote Keyboard fills a niche and fills it well. I'm ordering another one for our basement Media Center PC. If you've got a Media Center in your living room or den, definitely give the Remote Keyboard a look."
Paul Thurrott has a detailed review of the Remote Keyboard. I like the built in pointer so you don't need to worry about a mouse. One added feature Paul notes is Microsoft is now adding "Designed in Redmond, WA USA" much like Apple does on their iPods. That should make the script kiddies run out to buy this.