mmmm....
I am torn as to which to support...
I very much like the idea of having a CaP with only one ability, and think that Levitate will overshadow Technician anyway if we give this thing a solid movepool (Ice Beam, Thunderbolt, Flamethrower, >90 BP Special Rock STAB)... And I am afraid that if it gets Tech people will not want to give it those moves to make Tech more viable.
On the other hand I do like the idea of having a 90 BP move for any type running of 120 SpA, and Giga Drain would be cool... It would make counters and checks much rarer, but you would be able to use only one...
And having a secondary ability can't hurt (Other than the "Only Bronzong get a secondary ability with Levitate" thing.. but meh.)
I do not think that Tech would be broken, or a Rock Draco Meteor clone.
Unless we go REALLY overboard from here on this thing should turn out to be a decent choice for a sweeper, and have a place in OU without ever needing to be considered for revising.