It seems like "AppStore" (by Apple) but it's really the alternative Android Application "repository".
The news from MelaBlog says that also Android, like the antagonist iPhone, will have a nice installation tool opened to 3-party applications, called GoogleMarked. At the beginning, each application will be available for free, but MelaBlog says, it will be possible to find commercial contents in early future.
Moreover some blogs [1, 2, 3] say that AppStore and GoogleMarket will share functionality and applications. However the "AppStore" applications got a different license from "GoogleMarket" so it seems mandatory building different versions of applications.