HI
I remember Seth Nickell post some cool videos in Theora format while
back.
http://www.gnome.org/~seth/blog/xshots
Perhaps, we could ask his assistance.
The information on creating screencasts and producing ogg theora movies
is already possible through Istanbul. What we really need is for someone
or a set of people to coordinate and produce some that demonstrate
Fedora to end users.
regards
Rahul