There is an offical announcement from Google about Android. In version 1.6, we had a makeover for Android Market. They has a new skin for Android Market in 1.6. Moreover, they allow developers to put screenshots, promotional icons and descriptions in the market. In addition, the new version supports four new sub-categories for applications: sports, health, themes, and comics. Lastly, Italy is added in the list of paid apps sellers.
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Android Developer Blog