Android :: IPhone - Creating Good Interfaces?

I'm porting an iPhone app to Android and I'm having trouble designing an interface that looks and feels "Android." I've read all of the design documents in the Android Dev Guide and looked through all the Google-designed apps, but I feel like the layout of activities is largely undefined. Are there any resources that could help me transition my iPhone design to the Android platform? Here's a quick example of one of my issues. On the iPhone, every view that presents user generated content gives the user a "+" button in the upper right hand corner of the screen to add an item. It's consistent across the built in apps, and it's *mostly* standard among third-party apps.

I don't know what to do with the "+" button on Android. The guidelines say important actions should be present on the screen and not hidden within a menu, so let's say I put it on the screen. It shouldn't go at the bottom of a long list of items, because the user shouldn't have to scroll down every time they want to create a new item. That leaves me with a static button. But there are no standard toolbars, so I'm going to design my own iPhone-esque bar at the top of the screen with a "+" button? I know this probably sounds like a rant, and I'm sorry. I feel it would be worthwhile for someone to sit down and document how common iPhone UI practices should be transitioned to Android apps. I care a lot about UI design - I think it's one of the most important factors in app development -- and I'd hate to see every transitioning developer approach this differently. At any rate, does anyone know of existing resources that might help me out? What's the best designed app you've used for Android? A few examples of great "Android" interfaces would go a long way.