In the past two releases of Mac OS X, we've seen the baseline support for legacy machines hiked a notch higher each time; for Leopard, eliminating slower G4s from the working list, and for Snow Leopard dropping PowerPC support entirely in favor of the newer Intel models.
Now, with the developer preview of Mac OS X 10.7 Lion in the wild, the next frontier for obsolescence is set -- the new OS drops official support for Core Duo and Core Solo-based Intel Macs as well. We have heard from some testers that they've successfully installed and booted Lion on the older unsuppo
