I am quite a cautious person though not afraid to experiment.
I currently have 11.10 Unity and 12.04 Beta 2 running on different partitions (no problems). I have learned here that Unity can run in VirtuaBox.
When I upgrade to 12.04 LTS later this month, I am curious to understand if I could also run 12.04 in Virtual Box for experimentation and test some things before I implement them into my system?
Maybe there is a better way to achieve this, without partitioning my hard drive.