Just a quick heads up: we’ve just released a version of the Python plugin for the latest Early Access Preview build of IntelliJ IDEA 12 (build 123.4). The plugin includes the entire functionality of the current PyCharm 2.7 EAP, including several features which were previously only available in PyCharm (creating virtualenvs, using remote interpreters, creating UML diagrams for Python code etc.).
As usual, the plugin can be installed from the plugin manager (Settings | Plugins). Note that the support for reStructuredText and .po files is now available as two separate plugins (called “ReStructuredText Support” and “GNU GetText files support (*.po)”). Please install them separately from the plugin manager if you’re using these features in your Python project.
If you run into any problems with the plugin, please don’t hesitate to report them to the issue tracker.