I mean, the Finder is basically the most important application in OS X. Yet, Apple used Carbon, not Cocoa, they ruined the spatial system we had before with a poorly-done cross between the Windows and Mac style, and they had the chance to make better error messages (they are reknowned for great interface) but they didn't. Maybe you didn't know that they patched the toolbar interface into the Finder as a copy of the Cocoa version (that's why there are inconsistencies between Cocoa app toolbars and the Finders). Also, if I remember right, the Finder used to display the desktop background for no real reason, so if you wanted to use SNAX (a pretty decent cocoa finder replacement) and keep a desktop bg it was impossible (but this is fixed with 10.2 fortunately). Oh yeah, and that 1 second delay for the Get Info box on files/folders? Why such a delay? Even on this dual 1GHz i'm using right now, there is a delay.
I couldn't figure out why I disliked the OS X Finder so much until I read some articles about it recently. Try arstechnica's OS X 10.0 and 10.1 reviews as well as that more recent article (hrm. have to find the URL) to read up on it. I really hope OS 10.5's cocoa Finder interface will be better...
Anyone agree? I wish Apple would either go back to the spatial 9 Finder completely, or develop a completely new Finder with a better, more logical interface.
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And on a related note, why is Aqua so messed up (i guess the word is single-task based)? For example, if you do a slow motion minimize of a window in IE, you can't click a menu or another window in IE until the window is finished minimizing. Or if you hit Cmd-Q and a drawer opens to ask you to save changes, you can't just hit Esc and the doc will instantly go. You have to wait for the drawer to finish opening, then the button Esc will correspond to Cancel, and then the drawer will go back up...too much time is wasted for power users.