So, a couple of days ago, I did an in-place version upgrade to 11.04 on my laptop.
(Lenovo SL510 Core2Duo, 6GB of RAM, 300gb SATA)
Now, I *use* my laptop.. A lot. Every day. There are several applications at work that require Windows, so I boot virtual machines using Virtualbox, and bridge them to wherever I need them. After upgrading and rebooting, I logged in, and started a Windows 7 Enterprise VM, bridged to the wireless card. It started, I opened a web browser on the VM, and my homepage opened. This is not the cool part. Read on.
In the past, whenever I allowed my laptop to sleep, it would hang the X server, hang the VM, and sometimes even corrupt the disk image that was booted at the time. I haven’t been able to “sleep” this laptop since it was new. It *always* caused problems.
While my laptop was sitting there, freshly upgraded, with the VM booted and running and connected, I had an idea.
“Why not close the lid?” I thought. So, of course, I immediately did. I’m impulsive. whatever. ;)
I fully expected to open it up, have to switch to another virtual terminal, kill the X server, and start over.
This time, however, It. Just. Worked. tm
When I opened the lid, not only did the X server come back quickly, I logged in, was still online, and so was the *STILL WORKING* Windows 7 VM!! I had to do it 3 more times to make sure it wasn’t a fluke!! Since I probably spend somewhere near 6 hours a week shutting it down, and booting it up, this is fantastic!

Canonical rocks! Thank you for this release!!