Android still has some desktop UI design in it, with things like dedicated zoom and scroll areas, cursors movable by other methods then touch, context menus activated by a special button, and so on.
I'm not going to argue against your general point — you may be right — but I'm afraid I have some issues with your examples.
context menus activated by a special button
I don't know if you accidentally misused the term "context menu", or if I'm being overprecise in my definition, but the dedicated Android menu button is a contextless menu. (Or, I guess, a "current-page-context menu".) Actual context menus, that is, menus that are relevant only to a specific UI element, are accessed by a long press on the element itself.
cursors movable by other methods then touch
I've not played with iPhoneOS
that much, but precision placement of a cursor in text is a pain. I think I've seen that iPhoneOS provides a transient zoom-in for cursor movement, which is nice, but that's actually somewhat innovative, and I'll bet it's patented. Moreover, probably in a way that Google saw as tortiously defensible.
So I do understand your point here, but I don't really have a problem with an additional interface that (almost certainly) adds virtually nothing to the size of the device. The N1 trackball does do double-duty as a hard button.
dedicated zoom and scroll areas
I don't really know what you're talking about here at all.