(WOW) I'm impressed!  I've tried these virtual labs before but often had to go through some config changes etc. to get them working properly. 

Now that they launched this new version of these Virtual labs it has worked - first time, no messing about, no configuration changes.  And they perform fine!
 
Next Generation of TechNet Virtual Labs Launches
Microsoft Virtual Lab Express provides 30-minute, high-level, hands-on overviews of Microsoft products. Benefits include simplified registration and a software evaluation roadmap.

If you've been to TechNet events this year and would now really like to get some hands on experience with products like MOM, AD and SMS you can try them out here.