is anyone using https://github.com/hoplon/castra with gae?
this seems simpel (just clojure rpc) on the surface, but could make thigns really pleasant, if on client side, I can just make async rpc calls instead of hitting rest end points for ajax
fyi: posted a couole of articles explaing boot-gae at http://blog.mobileink.com
@qqq regarding drawbridge: i think you could keep a resident instance running, but i'm not sure you could guaratee that a message sent to the drawbridge url would be routed to that instance. GAE could decide to send it to a different instance. unless you could guarantee that there is only ever one instance running. not sure if that is possible.
so maybe a gae repl is a pipedream.
anyway don't all servlet containers reserve the right to dump idle stuff? i'm not sure this is specific to gae.