That's correct. Focus only happens before starting the video recording session. If you're referring to autofocus while recording, good luck finding a phone that does that.

Nokia did once mess around with continuous auto focus on the N93i, here's a video of it working on pre-release firmware

http://www.youtube.com/watch?v=-_j2nX1Gc4Q

but was later scrapped due to the motor being too loud. I think if this would be implemented now, you'll still be able to hear the motor of the unit autofocusing. Rather than dealing with all the complaints of motor noises coming out of autofocus while recording, Nokia just decided to give the camera a fixed length focus or, additionally, the ability to focus before recording.

My personal concern is the lack of video stabilization in the N900. Is this feature even present at the moment? I've seen dozens of recorded N900 videos with horrible shaking and has led me to believe video stabilization is not implemented (where every s60 cameraphone has this feature).

Another question (sorry to hijack your thread) but in a similar topic, is there a way to choose lower quality settings for video recording? For example, choose 640x480 / 30fps recording instead of the default widescreen 848x480 / 24 fps. I would imagine there would be additional options for recording as other video phones do.