We just received a training/guidance flyer from Toyota on all hybrids. Regarding hills they suggest accelerating before you get to the hill ( build up some momentum ) then drive normally going up the hill.

To that I'd add if possible... let off on the pedal just before the peak and coast over it then down the other side. Of course it depends on grade and traffic demands but as you say it's almost like a forced P & G

Lifetime fuel usage: 2.1 GPC ( 1.99 recent )