Adobe Camera Raw 6.3 supports the GH2 (+ new GH2 and 100-300mm image/video samples)
Les Machineurs just uploaded a new GH2 video. He used the [shoplink 17123]50mm f/1.4 Pentax Asahi SMC[/shoplink] and [shoplink 14796]17mm f/1.7 Panasonic[/shoplink] lens. ISO 1600 except the last shot at 3200. 1080p24 AVCHD 24mb/s. Edited with Final Cut Pro and QuickTime ProRes HQ codec.
Adobe annouced the Camera Raw 6.3 Release Candidate which supports the Panasonic GH2 (http://labs.adobe.com/technologies/cameraraw6-3/)
P.S: Hybridcams.fr posted one single GH2 image sample and some other smaples by Katten on Flickr . At Dpreview you can find one full size 100-30mm image sample.
Panasonic GH2 preorders (Click on store name to visit the product page):
Amazon US
