FYI... Apple's connector is highly proprietary. Just try to get one to create an accessory and you will find out just how proprietary it is. They own the connector. The micro-USB is, arguably, a standard connector. Of course, all of this is academic in that, proprietary or not, Apple has a terrific machine working for a few years allowing the proliferation of many accessories. Hopefully, the Moto Droid will get there some day. I'm an ABA guy (anything-but-Apple).
Oh yeah, I know the Apple iPod/iPhone connector is proprietary. Probably more than any other company. But it's the fact that their proprietary connector is uniform throughout the entire history of the iPod and the iPhone. That year's worth of products and customers that they've gathered and kept by not changing the connector. So someone can purchase a speaker dock to work with their iPhone 3GS as well as their iPod 2G.
If cell manufacturers would attempt this uniformity, then manufacturers would be more likely to design products for other cell phones. But all cell phone companies are different. Look at Motorola. Have they even made two cell phones within the same company that have the same footprint? Maybe the same connector, but not the same footprint.