Hears lots of rumors recently: the Versizon Android Phone is almost confirmed: http://phandroid.com/2009/05/28/verizon-android-phones-are-officially-coming/
T-Mobile’s next G phone also confirmed: http://www.engadget.com/2009/06/18/t-mobile-confirms-next-android-phone-will-be-announced-next-week/
Sprint still working on the “rumor” but haven’t heard anything solid.
Overall, it is a bit slow than I thougt, because it is far behind of iPhone and Pre, and some iPhone clones. Looks like in China and Europe the carriers are moving quicker to adopt android. But finally, they are on the way. They are definitely too late to lead, but may not be too late to catch up.