Very good news! Keep in mind however, that Froyo was released to the US for months before anyone saw it... there is a world of difference between Sammy releasing it, and ATT/Verizon from pushing it out. Not that anyone blamed the correct party for the delay last time, nor do I expect them to this time.
I do hope they release it though. The performance gains are not inconsiderable.
Will I be able to get this update with a rooted phone?
Captivate