Since this is a beta it is not intended for real usage, and neither is it fair to carry out a full review. So I'll jsut go as far as to say that the installation was short and sweet. I particularly liked the way that I could enter details such as time zone info, keyboard choice, and user name/password while the install was going on in the background. It's an interesting twist and a handy way to save time during the install.
Here's a quick what's new:
Ubuntu 11.04 beta 1 features Linux kernel 2.6.38, Gnome 2.32, Compiz 0.9.4 and Xserver 1.10.
New Unity interface.
Firefox 4, Banshee 1.9.5 and LibreOffice 3.3.2 installed as default.
Ubuntu Software Center features review and rating system for applications.
Windows snapping by dragging windows to screen edges (a la Windows 7).
Imporoved multi-touch support.
I did run into a few problems - I had troubles getting the Unity interface working both on standalone systems and in a virtual machine. I also had issues where the OS would boot into a blank screen as shown below:
I'm still investigating why this might be the case. But it does say beta on the tin, so problems are to be expected. Later I'll try upgrading a working Ubuntu install later to 11.04 Beta 1 later and see what happens ... stay tuned!
Redownloaded the .ISO and things seem happier on a physical machine. now going to try installing 10.04 beta 1 into VirtualBox which should (fingers crossed) allow Unity to work if I follow these (or maybe these) instructions.
Success! After following these instructions (which despite being in Portugese are pretty easy to follow) I got Unity working in VirtualBox 4.0.4: