It's interesting to me that sbt-idea and sbteclipse are in the top projects, when I would think IDEs should just be able to directly import SBT projects. I don't need a Python package to use PyCharm, after all. To me, one big friction point in using Scala in the Coursera course has been the inevitable hiccups in getting projects going in my IDEs (not to mention bugginess and slowness of the IDEs).