There is no other way to report bugs instead of posting here if your support is expired right?
This is for a Windows Host -> Linux (Ubuntu 11.04 x64) client setup.
Bug 1: If you press the Windows "Show Desktop" icon (on Vista), the position/size of all unity windows gets completely messed up.
Bug 2: The unity start menu doesn't properly reflect changes made in the client. (I added stufff to pplications, and unity doesn't reflect those even after a reboot)
Bug 3: Clipboard client->host is broken. (Other direction works)
I'd personally prefer if it was possible to show the real client gnome-panel (as for example competing products can) so you can use your widgets, but this is mitigated because you can make shortcuts to client apps in the host (that's nice!).