I just filed a bug report under http://youtrack.jetbrains.net/issue/WI-8112?projectKey=WI
There seems to be an issue with using mod-rewrite and htacess when using Xdebug with phpStorm. The application never makes a connection with Xdebug and states that it is waiting for a connection with a numbered ide-key.
Not using mod-rewrite is working as expected when debugging.
Just wanted to post that here in case someone else has run into this scenario and potentially found a solution for it.