I have a unique plan:
I have a 2009 Mac Mini mid-2009 with 10.6 OS X. I just got the 2011 Mac Mini with 10.7. But I am planning to use the hard drive from the 2009 Mac Mini with 10.6 OS X as an external USB drive for my new 2011 Mac Mini.
Question: Can I boot from the external USB with 10.6 from my new 2011 Mac Mini? (Using the Option key when turn on the computer, etc.) So, that I can boot into either 10.6 (on the external USB drive) or 10.7 (the internal drive) from my mini 2011?