Tonight I wrote my first GAE + Java + Ajax (Lomtiki Engine - my Ajax framework) + Google Reader API + Opera Presto (Opera Mini rendering engine) application. I called it Google Reader Proxy.
The basic idea is that the speed limit on the issuance of pages placed on the server Opera Mini, but not on Google Reader Mobile + Opera Mini. And on my phone I press the button 10 times less..
To test the functionality you can go to Opera Mini Simulator and enter in the address bar grproxy.appspot.com
Funny.. my Google Reader trends after using this application.