I've been keeping up with Fedora 15 development. I installed a nightly build on my wife's dual-boot computer. I've noticed a few changes that came with some updates yesterday that I wanted to share:

1. Fedora 15 appears to have incorporated all of the upstream GNOME 3 changes. The experience is exactly like that from the GNOME 3 live beta based on OpenSUSE

2. They added a way in the GNOME 3 Shell System Settings to switch back to the GNOME 2 style desktop

3. The GNOME 2 style desktop has been polished up some

4. Fedora has added some additional artwork for non-GNOME desktops

rest here