Here's a nice (albeit low-res and soundless) video preview of Dune 2: TSHA vU:
http://www.youtube.com/view_play_list?p=C6D7FC66E905D4B3
I'll try and get higher-res stuff up soon. I'm not sure about releasing a beta yet because I don't need testing or suggestions at this time, but I wanted to give everybody some sign of progress.