Currently Being ModeratedJan 9, 2012 2:50 PM (in response to studiomhs)
Yes, it's legal.
If you are running Lion v10.7 check out the thread I helped another user with the same issue here > https://discussions.apple.com/message/17127414#17127414
You may need to use Lion Recovery in order to reinstall FCP on the "second machine". That will reinstall the App Store for you so you can download FCP.
message edited by cs