The concept is really awesome and I'm excited about what the app could turn into. My suggestions would be to fix the force closing issues, and to turn this into a taskbar style app which stays opened all the time, instead of having to open/close every time you want to switch to a different environment. Also, a more polished ui/ux would be apreciated, I don't like the way you add apps to the group. But for starters, good freaking job.