They should make that part social - let devs upload their own, rate them, etc. Github for Android patterns, sort of.

We (Unitid / androidpatterns.com) like that idea. Maybe you (this group) can help us implement it.

Looking forward to your suggestions!

How many of these UI patterns are already codified in Android's app framework? It would be cool if these identified patterns were presented in a mini-framework.

Yes. UI is one thing, but many devs out there are using these patterns and everyone reinvents the wheel to implement them.