There's a pretty nice Java variant of this from JBoss: http://aerogear.org/docs/specs/aerogear-server-push/#overview http://aerogear.org/docs/specs/aerogear-ser

There's a pretty nice Java variant of this from JBoss: http://aerogear.org/docs/specs/aerogear-server-push/#overview http://aerogear.org/docs/specs/aerogear-server-push/#overvie... Works with Apple’s APNs, Google Cloud Messaging and Mozilla’s Simple Push.