This update bans ad notifications and homescreen icons:
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- Apps and their ads must not add homescreen shortcuts, browser bookmarks, or icons on the user’s device as a service to third parties or for advertising purposes.
- Apps and their ads must not display advertisements through system level notifications on the user’s device
"<p>This is significant as some of the bigger ad networks focus almost exclusively on these kind of ad units and have reasonable market shares (Airpush and Leadbolt are examples): <a href="http://www.appbrain.com/stats/libraries/ad" rel="nofollow">http://www.appbrain.com/stats/libraries/ad</a>