Most likely, you need to download and / or install Play 2.0 Support plugins + dependencies (most likely, you will need to find it in the Browse repositories section, this is not the same plugin as in the Playframework support !)
I can make sure that I just sit and play with Play 2.0 in Idea 12 with new support, and it works pretty well.
Go to Settings > Plugins and check if you have the latest version of the mentioned plugin, and if it is not blocked by some error (i.e. missing dependency), try to resolve all missing dependencies, restart the IDE, and compile (or run) your applications at least once.
I have not tested it until the end, but I see great progress in support, especially in templates and controllers. The routes file makes it easy to go to the target actions, but, as I see, there is no syntax highlighting in the conf file.
It is currently possible to launch and debug the Play application from the menu.
In general, if you enable the Play plugin, you will definitely see it :)
biesior
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