Is it possible to have two different sets of system specifications regarding beta opt-ins? I had my windows desktop specs for a long time, but since the news of the Starcraft 2 Mac beta, I was wondering if I could opt-in my Macbook as well.
I downloaded the Mac version of the System-spec finder but after sending it to Blizz it appears to replace my old Windows desktop specs.

Any ideas? Am I restricted to one or the other?