Apple has always made things to "keep people out" unless those people knew what they were doing. They've never removed access for those who wanted a way in, however. "Show Package Contents" is still a right-click away. I'm all for throwing out our outdated file system metaphor, however. I'd much rather the computer simply keep a database of files, and offer you a presentation of groupings of files based on what program you're using to access it. Apple's headed in the right direction with iOS, and I think Mac OS X has been headed there slower but for a long time. If the whole concept of the folder-based hierarchy could be eliminated, I feel that computing as a whole could move forward with a better approach. It only remains to be seen who will come up with the next metaphor that will be used.
jW
The file system is not going away any time soon, but hiding it behind some well designed ios like apps is in the right direction I am glad that we will be moving in that direction, and hey girls you can always boot up Windows Explorer for a nastangic walk in the "good old days"
Time to come out of the wood and the outhouse and start using nice clean toilets inside.