OH, and by the way. I played/GMed Hero system as my system of choice from 1980 - 2000...
And all I have to say is thank G*d for M&M. Power stunts, hero points, fast combats, and a bit of handwaving are all good things in my book. Yeah, it's still a bit rough around the edges, and combat/character balancing takes a bit of getting used to, but for my group and me it's been a very welcome change.
I fully expect a 2nd edition will solve most of my gripes with the system. We're already discussing grabbing a few things from True20 to bring over to M&M (namely the skill system, and simplifiying all stats to just the bonus)