as you can see/hear in the following video from Google-IO, we can expect something similar to Apple's AppStore, what Andy Rubin (Google) now just calls "Content-Distribution".
There is not any news, whether Google is aware of already working 'App-Store'-kind software like TrackDroid...
It's probably going to take a while until we will finally know it.
Vincent Nguyen from androidcommunity.org took this photo, which shows a "Market"-Application:
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