It seems dpreview is close to finish their review. They posted a gallery with photos and movie samples. May you take a look on it!

http://www.dpreview.com/news/0905/09051503panasonicgh1preview.asp

UPDATE: Duarte (see the comment section form this post) has been right, dpreview wrote that the review isn’t ready an it will need time until they will make it.

Made by http://www.imaging-resource.com .

Here an interesting excerpt:

“The above helps illustrate a couple of things to do to improve image quality in AVCHD videos:

• Subjects with large areas of relatively little detail (flat walls, sky, etc) will leave more video bandwidth available to record detail in parts of the image you’re more interested in. (For instance, Charlotte would have been rendered with much more detail if the setting here had been a paved parking lot with a flat concrete wall in the background.)
• Unless you have to move quickly to track a fast-moving subject, you should always pan slowly when making videos. Most amateur videographers pan their cameras way too fast, making their videos hard to watch. With AVCHD, though, you pay a double penalty for this, as the rapidly-changing image content means loads of detail gets thrown away by the compression.”

Thrifty – GH-1 goes to the Thrift Store from kholi hicks on Vimeo.

This is exactly the video I was waiting for. A moving subject in outdoor and indoor locations. To date, the Panasonic GH1 has the only usable video capabilities. Of course you can use the Canon 5d markII or the Nikon D90 or the new rebel, but all three have very strong limitations. What that video shows me is that the camera handles motion very well. There isn’t any terrible “Jello” effect like the one from the Nikon D90.  Some scenes are overexposed but this may be down to user error. The only thing I do not like is the low 17Mb/s rate. On HD screens may you will see some compression artifacts. I hope to get the camera soon to test it.

Oh and yes, i like the shots taken with the Contax Zeiss 1.4 lens! Wonderful!

If this video convinced you to get the Pansonic GH1 buy it here at amazon: Panasonic DMC-GH1 12MP Four Thirds Interchangeable Lens Camera with 1080p HD Video

Click on the picture to enlarge!

Source: dpreview forum