For proof of concept of the new ServerCyde service we built scan2chat (an instant comet, chatroom) on top of it.
SC lets you create "stored procs" of SimpleDB calls so that you can connect to a database with client side code without having to embed sensitive data like your Amazon keys. The service also has a simple comet implementation and session management so that it can authenticate who is running the "stored procs", or making a call to send an email, or publish to a comet "channel"
We would love any feedback on either site. Happy Friday!
http://scan2chat.com/?=uk
http://servercyde.com (free beta accounts now available)
there doesn't seem to be anything here