as I understand, Time machine is a file backup utility. not system. so it can't be restored in case of a disaster. eliminates Mac from being the main os on my macbook. thank god for switching from PPC->intel. i can install Windows natively on the macbook. then install vmware and emulate leopard with opensuse linux. great. i can also backup the entire SYSTEM with all 3 operating systems. and the best part, i can take the backup with me anywhere, and put it on any PC. another biggest reason for not using leopard natively is because, for arguments sake, say there is indeed a system backup tool for mac, fine. i install all 3 os's, and creat a backup. but when it comes to restoring, guess what? i can ONLY put in another mac. what if my important files are there? i can't restore in case my hardware fails. i have to buy another mac. wow. not so if i use windows as host and the other two as guest. at this point, i'm just trying to locate the drivers. after that, i'm all set! wuhu.