What are the promised new features of Leopard then?
re: 64 bit processing:-
As far as I know (which isn't much), 64 bit processing allows systems to make use large amounts of RAM efficiently. Moreover, certain applications can take advantage of 64 bit processors, however they need to be programmed specifically for this. Some reckon it will be years before 64 bit processors are standard, and further years before the is a general software operation consenus on 64 bit processing. Other than that, I'm not sure how it works. Apparently the Intel Menom Duel Processers are due for MacBooks in September 2006, but the real benefit of these won't be felt immediately beyond the suspicion that they will use less juice for more power, and will obviously be 2gig+ as standard.
Correct me if I'm wrong.