Works so far with Windows XP Pro

It took a little time for it to connect, even gave me a warning that if may not work with any OS earlier than Vista. Gave it a try and I was able to use it. So far its better than splashtop, especially since you dont have to install anything new on your desktop you are connecting to. I didnt really give it a full run, but I was able to click on things and type, cant ask for more. Good job Microsoft!

Haru219 about Windows App Mobile, v8.1.21