Compiz Based Unity PPA for Ubuntu 11.04 (Natty)
This is first PPA for compiz based unity you can try in ubuntu 11.04
Install Compiz Based Unity PPA for Ubuntu 11.04
Open the terminal and run the following commands
sudo add-apt-repository ppa:unity/ppa
sudo apt-get update
sudo apt-get install unity
Try this in your test machine and let us know what do you think on this?