Open source is unfamiliar ground for professors. Not the software, which is well-known at this point. But professors aren't accustomed to open development. They treat open source projects like busy work or an easy way to assign homework. Participating in FOSS projects takes work and time, maybe even six months, which is a big commitment for someone who wants to use it in a one-semester course. A student being sent in to a project without involvement from a professor is a recipe for failure."
Via Ana Cristina Pratas