I have a late 2009 27" iMac. The iMac runs the default OS X version, 10.6.
This week I bought a new MacBook with OS X 10.8. Can I install the new OS X on my iMac without buying 10.8? Does the license allow this, and if it does, how do I do it? If you know how I can register OS X with my Apple ID, I can install OS X 10.8 via wifi.