Same here. Not having multiple projects open is a total deal breaker for us. We have a couple of shared libs that go with our projects and not being able to have them all open together is painful.
I work around this by either checking the core libraries out into my new project folder, so ice got multiple copies around- and also I've got a core-Luba project that's literally all 12 core libraries we have that I can have open in one window with my other project open in another.
