Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
These improvements allow the desktop effects to all be done on the CPU without any dependence on any GPU hardware driver. GNOME Shell on the VESA driver or within a KVM/QEMU guest is fair game.
Having returned from the Ubuntu 12.04 developer summit this weekend, I pulled the latest Fedora Rawhide packages on Sunday morning. These packages will ultimately be part of Fedora 17 (a.k.a. the Beefy Miracle, and not to be confused with the release of Fedora 16 this coming week).