Was running Beta Candidate.
1. This seems smoother.
2. Did not allow upgrade from Windows XP, or from Windows 7 Beta
3. Complete install also wiped out my data partition! I had all my documents and install files in a separate partition. Window 7 RC1 wiped everything in there, and put in some silly Eula files and stuff. Why? It was F: drive!
4. Oddly enough, most of my program files are still in the C: drive!