- OpenGL in child windows should work again.
- Better mouse support in games.
- Beginnings of new state management in Direct3D.
- Improved audio and font support on Mac OS.
- Lots of bug fixes.
Download and play with it whilst you have time during the holidays. :)
Personally, I prefer full virtualisation since it allows me to use other operating systems besides any of the Microsoft operating systems, which I do not really use.