I own a PowerBook G4, which support was unfortunately cut for in Snow Leopard, but I wouldn't be surprised if 10.7 cut support for the original Core Duos since they are not 64-bit, and Apple seems to really be trying to make everything 64-bit. An updated UI is really needed. My PowerBook runs Tiger and my iMac runs Snow Leopard, and the desktops are nearly identical. And it's not just that--OS functionality between the two barely differ. The "Back to the Mac" name makes it sound like OS X is going to be getting the overhaul it needs, as OS X has only gotten small incremental updates every 1-3 years over the past 10 years (Tiger and Leopard were what I'd consider the biggest steps forward, but there has never been a major UI overhaul). I'd assume that it'll be released in about a year. My guess would be that they show it off next week and make a beta available to developers (well, at least I hope they would so I, as a developer, could try it out!) and then talk about it's new technologies with developers at WWDC 2011 before finally releasing it to the general public. Hopefully...
answered
Oct 14 '10 at 18:31
tjbackstage
1●1
OSX Tiger was 10.4, I think you mean Lion so I edited it.
Related: http://lockergnome.net/questions/88829/mac-osx-10-7-lion
it is slightly different... enough to stay open