
The updated market will allow developers to add screenshots to their apps, as well as full descriptions. Similarly to the popular Apple App Store, the updated market will also now have tabs for latest apps, top free, and top paid. Four new categories will be added; health, sports, comics and themes, which I'm not sure why they were not included in the first place.
Currently the Android Market generates about $5 million USD per month, while the App Store generates over $200 million. It is unclear when 1.6 will be released.