There are 3 issue tracker projects for IDEA.
1. IDEA Feedback (http://www.jetbrains.net/jira/browse/IDEA)
This project is used for reporting all issues whether bugs or new feature suggestions. If you want to submit a bug or a feature request, use this project.
2. IDEA Backlog (http://www.jetbrains.net/jira/browse/IDEABKL)
This project contains all features that are considered worth implementing but not in the nearest release
3. IDEA Development (http://www.jetbrains.net/jira/browse/IDEADEV)
This project reflects our development activity and current progress
To get notifications on what happens in the tracker, you can subscribe to RSS feeds in each of the projects. RSS feeds are available for any filters you create. For example, if you want to get notified on anything going on in the Feedback tracker, there is a preset filter called "All" (available at http://www.jetbrains.net/jira/secure/IssueNavigator.jspa?reset=true&mode=hide&pid=10080).
At the top of the page you see the Issue Navigator block containing links to different views for this filter:
The XML link corresponds to a RSS feed you can use to subscribe to in your favorite RSS reader. However, since access to the tracker information is protected, when subscribing to the feed, you will need to add two additional parameters to the URL. They are os_username=<your username> and os_password=<your password>. You do this by appending &os_username=user&os_password=pwd to the end of the URL.