Rumors about Apple's future moves don't die easily. Just consider how long rumors of the headless Mac, the flash-based iPod, and the x86 edition of MacOS have been around. That said, two of those already ended up being true and Michael Dell wants to be first in line for the third.
Michael Dell would say little in the way of specific hopes but did mention that "if Apple decides to open the MacOS to others, we would be happy to offer it to our customers," in an email to David Kirkpatrick of Fortune.