Laura John (who I used to work with while we were both at MSDN / TechNet), has blogged about something I've not heard of before...Windows Live WiFi:

"We provide dial-up access to a ton of users across the United States but we've also been working on a stealth project that we're now ready to Beta -- Windows Live WiFi.  This version is pretty basic, but you'll want to be in on the Beta, I'm sure, because there are some very cool and incredibly useful features coming."

The Windows Live WiFi team blog (Un-Wired) has more details and is currently looking for beta testers...