GamersReports has a bit up about a guy who developed software that will allow anyone to surf the web on their XBOX 360 using a WinXP MCE remote. I suppose it was only a matter of time before it happened...

"While not directly made for surfing on the Xbox360, we have put together just how to use it to do so. You can go to the more programs tab on your Xbox360 and run the program, then use the remote to surf the internet on your Xbox360."