EP-2 has manual controls in movie mode
I agree with your assessment that GH1 is better but it is also extremely large compared to E-P2. Much too large for mFT format, I am afraid.
Well, using an add-on EVF, the difference is negligible for medium and larger lenses, and one gets the hugely practical swivel LCD. I wouldn't call the swivel LCD a must for DSC, but for video it's close.
'If you can imagine sharing a waterbed with a baboon that's just been doused in itching powder.' J.C. Reg. the suspension of the Lincoln Town Car '82