In reply to Greg Winiarski.

What's lacking for multiple project support? You mean multiple projects in one window? Careful what you wish for, NetBeans is a memory hog when it comes to that, I'm glad PHPStorm doesn't do that. However, PHPStorm does offer external directories to be included into a project, which I do for my core WP install and any other reference folders I don't want inside my project itself.