The WET11 works great for me, but I can't get on XBConnect with it... more so, my only PC is wireless as well, and you can't run the XBConnect software with a Wireless PC. It's very fustrating. Hopefully they will upgrade the software to include this support.
I would imagine more and more people have WiFi now, and it would be great to be looking at your wireless laptop while getting on XBConnect. someday.. hopefully...