In an accidental discovery, we found that the Windows Phone Internet Sharing feature worked perfectly on our HTC Titan with Solavei service. Remarkably cool, and the only MVNO where it hasn’t told us to call *611 to enable the feature! The $49 Solavei plan just got more attractive with this little nugget!
Simply press: Settings > Internet Sharing > On and within seconds you will see your active hotspot address and password. As you can see above, the speeds are great even on an AT&T compatible handset.