Could someone please explain
 

I came across a blog entry: Improved autofocus for Olympus PEN cameras and Panasonic G1, GH1, and GF1 | Digital Cameras & Camcorders | ZDNet.com

It suggests the Olympus cameras autofocus in video mode: "As announced last week, Olympus has released new firmware to improve autofocus for both still image shooting and HD video recording..."

I thought only the Panasonic GH1 had this capability, no????

Also, with regards to the GH1, what does"Additionally, it will enable autofocus in full HD recording mode with Four Thirds lenses compatible with contrast AF for the GH1." actually mean? Third party lens compatibility? Or just other Panasonic lenses?

Thanks.