Next time you install OS X? You’ll be slurping it down through the Mac App Store, not loading it up through an optical disc like some sort of caveman.
In the latest build of Mac OS X 10.7 Lion seeded by Apple, one notable change is this:
Enhances the Mac App Store to get ready for Lion
The release notes all but confirm that Apple will be pushing the Mac App Store as the primary upgrade mechanism for Mac users. This really can’t come as a big surprise since all the developers have been downloading the Lion beta through the Mac App Store.