FYI heres the change log from the HD forum. They tend to match up in case you wanted to know whats in the new build.
March 9th, 2010 (Latest release):
- Builds 21895 and 23544 added to the mix!
- YouTube can rotate fine in landscape now
- Pagepool lowered to 20 megs
- Removed "No Data" for "Data Controller"
- Updated Arkswitch