A bit surprised there aren't more posters here!! I'm currently working with two GH1's now, and I have to say, these camera's are the cats meow. Outfield fitted with the kit lens, a wonderfull all purpose, with absolutely silent and fast auto-focus. Nearfield fitted with the panny 20mm f1.4..a spectacular wide and low light piece, although admittinglyAF is slow and loud on this one. Gorgouse shots make up for it.Now, only my first one was hackable, but most of what I shoot is 720, so not an issue. And my philosophy with all equipment, is to stick with OEM, so generic batteries would never be an issue.
To say the audio is lacking, is an understatement, but we know this to be true with most camera's, not to mention just DSLR's. Having been involved with audio-recording for decades, I would have just as soon preferred they skipped the onboard mic's all together, if not for sync necessityfor my Sony PCM-D50's.
Lastly, I was initially put off to what seemedPannies rushed to market GH2,but even with it's biggest plus ofraw direct out, theapparent cheaper build quality, and button lay-out lose me. And audio-meters? Meh..it's STILL agc, so quite useless for anything other then scratch track.
I love these camera's.They're seemingly indestructable, for a guerilla shooter, the video quality is on par with most pro gear,they seem to love any and all lenses, and shootspectacular stills. They're small, light, so carrying two kits, including the PCM-D50's, mics,and all accessories, still appear as nothing more then my underware bag, when traveling ( a critical detail, in my eyes, rarely mentioned )..So c'mon lumix users, pipe up here!!