All it appears to be is WAR deployment and memcached session support. If your deploying a WAR switching to embedded tomcat is trivial as is tying memcached/redis to tomcat's session manager. I also don't see how they support adding libraries to tomcat if they control the container, maybe a maven plugin?
If they were going after the 'enterprise' market I would have expected EAR deploys to JBoss or Glassfish.
They are also supporting Java 8, pretty nifty. Exciting news for the Java community.
I looked, but couldn't find any information on max Java heap size, etc.
Glad to see the Heroku updates. It is definitely becoming one of my favorite tools.
Next step, I hope they roll our websockets support.
Still can't find out how much will it cost me. Those pricing "tools" say nothing concrete and measurable to me.
So, like regular Heroku, but more expensive and enterprisey?
Sadly I think the OpenJDK will scare off most "Enterprise" developers. I see this as a good option for testing/development but I have never seen an Enterprise use OpenJDK in production. Most are using Oracle's JDK or some other special purpose JDK. And if you can't make it look exactly like production most shops are not going to touch it.