Just to let you guys know, autoappmart.com is ready for apps. Its only intended to be used by developers at the moment.
So addressing some of the items in this thread
1) integration with front ends.
Im actually really excited about this part. Its not that difficult to do either. See when apps go up on autoappmart they get tagged with a category. Lets say there are 20 RR Plugins. They would all be tagged RR plugins. So RR would add a button for "buy plugins".
When you click that it requests a URL from autoappmart asking for plugins for RR. I return that list in a way that would be easy readable, like XML.
Code:
<plugin>
<name>plugin name</name>
<desc>Descript</desc>
<thumbnail>http://autoappmart.com/images/12312/hey.jpg</thumbnail>
</plugin>
RR would read that feed, and when you click on an app, you leave RR and enter the "made for 7 inch display" appstore, already on the product you clicked. You can buy and download right there!
It would be pretty neat, and maybe down the line we can even do the buying process right within the apps, but for that I would probably make a c#, c++, .net library for the buying process.