Hello.
I wanted to try Gnome3 with Gnome Shell and couldn't make it work on Debian, so I installed Fedora 15.
AFAIK there are no x2go client packages for Fedora, but there are packages for Mandriva. Getting them to install on Fedora wasn't that difficult, I've documented it here: http://wiki.x2go.org/installing_x2goclient_fedora
Please note that there is no support - from me or anyone else - on this. That said, it worked pretty much out of the box.
Cheers, Daniel