All of the "true" hybrids in production right now do use one of the Moto-Generators for regenerative braking. From Toyota Prius all the way up to The Chevrolet Sierra Hybrid.
That does *not* include the Gm "Mild" hybrids though. The mild hybrid just doesn't have the capability. A 80-series serpentine belt can only do so much!
I am *really looking forward to torture testing the Camry this weekend... It's not just a hybrid, but an "Atkins Cycle" engine too! I can't wait!
--Vince