I do have 2 things that I believe would be wise to change.
First up is the ecryptfs-utils - this is a very solid encryption tool
that I think would be very handy to ship with your live cd.
Next up is the video editor. I think it would be wise to change the
pitivi video editor with the kdenlive instead. I know this would require
more disk space, but kdenlive has become a very stable a feature rich
editor. I have tried pitivi, and it has a nasty habit to crash almost
instantly.