Issue with deployment (Clojure/Java)

For the past few days I have been getting the following error from dotcloud push when attempting to push my Clojure app to the dotCloud Java service:

sent 156 bytes  received 20 bytes  50.29 bytes/sec
total size is 5.33M  speedup is 30272.57
13:44:33 ---> Deploy of "xxx" scheduled for revision rsync-1328622272610 at 2012-02-07 13:44:33
13:44:33 ---> Building the application...
13:44:33 [www] Build started for revision rsync-1328622272610 (clean build)
13:44:41 [www] Build completed successfully. Compiled image size is 5MB
13:44:41 ---> Initializing new services... (This may take a few minutes)
13:44:41 ---> No new services found
13:44:41 ---> All services have been initialized. Deploying code...
13:44:41 [www.0] Deploying build revision rsync-1328622272610...
13:44:46 [www.0] Running postinstall script...
13:44:48 [www.0] Launching...
13:45:02 [www.0] Waiting for the service to become responsive...
13:45:32 [www.0] -- Failed to deploy: Service "http" (port: 8080) failed to respond within 30 seconds
13:45:32 ---> Deploy finished

In other words, everything goes fine until we hit "Failed to deploy".

The only change made to the application code was a modified text string in a template so I'm pretty confident that I haven't broken anything, also the app works perfectly in a local jetty container.

I have tried restarting my app's www service and also destroying and pushing the app again. To no avail.

Have there been any changes to the Java service recently? Has anyone else experienced a similar deploy failure or can anyone throw any light on this?

Much appreciated.