Camelia started out as a tool to help students in Brown University's CS17 have an easier time making the leap from Scheme to OCaml. It's meant to make writing in OCaml relatively painless without having to learn the nuances of a powerful editor like Emacs or VI. That said, it's not meant to be just a teaching tool. It is a fairly powerful IDE that offers a nice alternative for OCaml programmers of all skill levels.