One of the rumors that was floating around before the release of iTunes 9 was support for third party devices. A lot of people were highly skeptical of that part of the rumor, and with good reason. Apple doesn't make a lot (yeah, I know, but according to them) off of iTunes media sales. iTunes is the conduit to sell iPods and iPhones, which right now, let's face it, seem to be their main focus right now. Remember: it's Apple Inc. now, not Apple Computer Inc. anymore.
I just bought a Droid yesterday and I'm as frustrated as you are about all of this. Yes, I downloaded doubleTwist and updated to the latest version. It hangs up sometimes, and once you transfer the iTunes library once, and try to add any new files to iTunes? Nope, doesn't sync to doubleTwist. You have to drag and drop files over to update it, by hand. It's a pain. Salling Sync? Freezes and errors. Like the Droid, the possibilities look great, but for the moment, there are problems. I keep reading about how much people love doubleTwist, but it's been causing me problems personally.
And as to the Droid itself: Why the hell is it that when you plug the Droid in with the USB cable, you have to go to the Droid, pull down the USB menu, and select "Mount SD Card" every time? Why doesn't it just appear on the desktop like a USB drive or device should? It's a small thing I know, but after doing it several times, it gets a bit irritating. That just seems a basic to me that the device should appear on the desktop. If USB sticks can do it (and yes, they are FAT formatted) then the phones should too.
I would love iTunes integrated support for Android devices, but unless someone can come up with a third party "plug-in" of sorts that would tell iTunes to recognize Android devices (and no, not "trick" iTunes the way that Palm tried to do) then I'm afraid we're left in the lurch unless 1) Motorola Media Link gets written for Mac, or 2) doubleTwist, Salling Sync or other software fixes the bugs and makes it work much better and easier.
Oh yeah: why didn't I just get an iPhone? Because I've been with Verizon for the past ten years or so, after dealing with Cingular and having no signal in certain places I have to be at, or having calls drop occasionally. I haven't experienced that yet with Verizon, so I'd rather stay with them. If it weren't for that, I'd probably have an iPhone right now.