Question Regarding ML Up-to-date Program

The update will be done though the MAS (Mac App Store) using your account and tied to that machine, also the code for the free update code will only be good for some X days (What ever Apple says, that's what they did with Lion.).

As for selling it with ML with it, I don't think that would be a good idea. If they need to reinstall ML they wouldn't be able to because it was done though your account, and I'm sure you don't want to give that out.

Everyone says if you can't wait until July then get it now and use the code with ML comes out. If you can wait, then wait until ML comes out it most likely the Air will have ML on it already.

Hugh