UPDATE: The GH1 hack also works for the Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1Panasonic GF1!!! The video above has been shot with:
1920x1080p
29,970fps
32Mbit
lens:
Panasonic 20mm f/1.7
Panasonic 45-200mm

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And one more Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1Panasonic GH1 video sample has been posted on vimeo:

Tester13’s Firmware Hack test, before – after comparison from Gunther Machu on Vimeo.

Shot with kitlens at f8, 1/160 shutter, iso 100, manual in creative movie mode at 5300K. For MJPEG, the settings of Pappas (see thread MJPEG 70Mbits+ 1080p settings) were used, for AVCHD the “safe” settings indicated at the end were used (from jobless, see thread AVCHD high bitrate tests, mud free footage).

I tried to keep the pans at the same pace, but thats difficult. What is incredible, the MJPEG clearly shows a better resolution (I used just the 1440x1080p settings as my card is only class6), plus the AVCHD shows no mud and increased resolution (before, on low contrast scenes islands of unsharp areas could be seen), as can be clearly seen in the comparison (e.g. look at the shadow area right to the gardenhouse).

Our friend Andrew tested the video quality of the Panasonic GH1 and the Canon 5D. The review is very detailled and the GH1 performs very well! Read the article at EOSHD: http://www.eoshd.com/content.php?130-EOSHD-shootout-part1-5d-gh1.

The Panasonic GH1 + 14-140mm lens sells for 1,189.95 on amazon

“The GH1 even outperforms a hypothetical four-thirds sensor cut from a
(wider) Canon EOS 7D sensor (with the same pixel size). With its 50%
larger sensor surface (corresponding to 9 DxOMark Sensor points), one
would expect the 7D to have outperformed the GH1 by 9 points. Instead,
it achieves a DxOMark score of 64.9 — only slightly more than 1 point
above the GH1’s score of 63.6.

Except for the Olympus E410 and Olympus E510 (both released in early
2007), which have a DxOMark Sensor score of about 50, most four-thirds
sensors have a DxOMark Sensor score of about 55. The GH1 outperforms
them all with a DxOMark Sensor score of 63.6.

The GH1 outperforms other four-third sensors in terms of Low-Light ISO
(772 for the GH1 vs 571 for the Olympus E3, the second-best performer)
and Dynamic Range (11.6 for the GH1 vs 10.8 for the Panasonic DMC L10,
second-best performer).

Canon 7D’s performance is similar to the G1’s at ISO settings up to
800, and similar to the GH1’s at ISO settings from 3200. The GH1
outperforms the 7D for ISO settings up to 800.”

source: DxO mark