I took this video/screencast off my phone using a different method all together. (the screencast starts at 0:20) I found that the gstreamer or using ffmpeg on the device was taking up too much CPU time to reasonably step through the process.

These instructions were are for using ubuntu/linux your recipe may vary depending on OS.

I installed x11vnc on my n900 and launched it from the terminal
Then used vncviewer to connect to the phone's display on my computer, similarly in the computer's terminal, with my phone's ip address
once I positioned my vnc window (in this case the top-left corner) I ran ffmpeg to encode the stream with a specific 800x480 resolution and a 5,55 offset so that I didn't grab the window borders, as such:
Now you just use the phone as usual and all the video will be recorder.
hint: change the wifi setting for your current connection to temporarlly disable power-saving so that you're always running at 100mW (you can find the settings in your connection manager)

And as they say done-and-done!