A question came up during the Android Fireside chat regarding Android application distribution system.
"We’ve thought about it. It would be a great benefit to the Android community if there’s a place people can go to safely and securely download their content and have a billing system so that developers can get paid for their effort, and I have nothing to announce today, we’ve thought of it…We wouldn't have done our job if we didn't provide something that helps developers get distribution." –Andy Rubin
Well there it is folks, if you read between the lines, it sounds as though Google is working on an Android app store for content distribution.