Good news for developers and IT engineers:
The new Mac OS X Lion EULA contains a phrase basically indicating you are a allowed to run 2 additional copies or instances of OS X Lion on each Mac already running OSX Lion.
This is a big change for OS X users.
For the beta, there were already steps on how to setup such a VM on a Mac or PC (including faking it to be the OS X Server), hopefully those steps have become a lot simpler now.
Probably these steps on how to make a OS X Bootable Installer from a USB Flash Drive helps too.
The OS X Lion release is already available to developers, and should be available to the general public really soon now.
–jeroen
via: Mac OS X Lion Supports Running Additional OS X Instances Within a Virtual Machine.