I just did the update and it looks like so far so good (I had issues with data connection). I dont see the customizable dock anywhere nor do I see Google talk. Am I going blind or is this correct. Only thing I can think of is HTC did not allow the dock because they have skins for the phone where Moto does not.
Sorry to keep mentioning this (but the problem keeps getting mentioned in different places).
There's a free app called "Go Launcher" in the Marketplace. It's like HTC Sense on steroids. Autorotate portrait/landscape home screen, ability to do icon layouts other than 4x4 (5x5? 4x2? Go for it!), and a customizable dock that contains 5 items (and can be slid independently of the home screen, if you like, for up to 3 docks and 15 items - though I find the idea of a sliding dock really confusing).
It also adds the ability to change app icons (even completely custom icons you can download), adds a ton of new downloadable skins (some free, some paid), gobs of new widgets with more available for download, swirly/slidey/swooshy/cube transition effects, and probably a hundred other little enhancements I'm completely forgetting.