So I’ve just submitted the initial implementation of the menu drawer. It’s fully functional (with just a couple of minor exceptions), though will need lots of UI work. You’ll need to add android-menudrawer in order to build it (follow the same steps as you used for ActionBarSherlock).
I haven’t touched the existing Dashboard menu yet, though I suspect I’ll remove that entirely and default to the Posts screen on initial launch (the same way the iOS app does). I also suspect that I’ll move the Quick Photo and Video buttons to the bottom, also similar to iOS. Anyway, give it spin and see what you think.