maybe just do a facemash with maps...

rails/map-mash/config/initializers/session_store.rb

@@ -5,7 +5,7 @@
 # Make sure the secret is at least 30 characters and all random, 
 # no regular words or you'll be exposed to dictionary attacks.
 ActionController::Base.session = {
-  :key         => '_pennmaps_session',
+  :key         => '_map_mash_session',
   :secret      => '28f75daa5d26dcf4393a379bca87589d42118d8796f9c32fd5a183e879765c0ba458f1e9803caf5f183ed68d1a107de6f06871353a49bc1e29a758f7ada4c324'
 }