testuser: Please. Just because Mac OS X still has a little polishing to do and scanner support to add doesn't mean that most things are still difficult to do. I find that everything just works. My CD burner is supported without any additional drivers for Mac OS X. My microphone is supported without any additional drivers. Same with my printer. If I want to print something, I just set up my printer once, press Command-P and then return all of the rest of the times. If I want to burn a CD, plop in a blank CD into my burner, give it a name and hit "Prepare", copy items to the CD, eject and press "Burn". Boom, done. Connect to an airport network? Go to the Network pane, make sure the Airport network port is active, select an in-range base station. Boom, done -- on the net. What if I want to transfer files to an MP3 player other than my iPod? Launch iTunes, connect the MP3 player, drag-and-drop music to the thing within iTunes, disconnect. Boom, done. Is there a software update available? Great! Go to your Software Update pane, click Update now, select the items you want to install, press the install button, go do your other stuff, go back to Software Update when you see the bouncing icon, press the restart button. Boom, done.
Seriously, what more do you want? Do you want to plug in the MP3 player, think which music files you want to transfer over, disconnect it and have all the files transferred already? Do you want to put in a CD, say to your computer "Transfer all important personal files to this CD" and expect it to be done and burned in 5 seconds?
Oh, and about that filename extension thing? That's been beaten to death; Mac OS X's metadeta support is hands down better than OS 9, especially since it DOES STILL USE TYPE/CREATOR CODES in addition to filename extensions.
Sure, it would be nice to have built-in scanner support and an iScan iApp, but give Apple a fuckin' break! They did the impossible -- they merged the power of UNIX with the simplicity of Macintosh, and let me tell you: Mac OS X has sure made my life a WHOLE lot simpler.
Remember one thing: Apple is doing you a COURTESY to provide all of those built-in drivers for third-party products. Did Apple do that in OS 9? HELL no. If you really want your scanner to work with OS X, yell at the developers... don't give Apple flak because they haven't added the drivers for them. I DO understand your argument about not being able to reinstall over newer versions of the operating system, and I do hope that they will get their act together with the installer and the updating-rigidness issue (with keeping apps in their respective folders). But Mac OS X on the whole is a whole bunch better and simpler than OS 9, and that's indisputable.