Gobby is a free collaborative editor based on libobby, a library which provides synced document buffers. It supports multiple documents in one session and a multi-user chat. It runs on Microsoft Windows, Mac OS X, Linux and other Unix-like platforms.
Spe is a python IDE with auto-indentation, auto completion, call tips, syntax coloring, syntax highlighting, class explorer, source index, auto todo list, sticky notes, integrated pycrust shell, python file browser, recent file browser, drag&drop, context
G. Meixner, M. Seissler, and M. Nahler. 4th International Workshop on Model Driven Development of Advanced User Interfaces, volume 439 of CEUR Workshop Proceedings, CEUR Workshop Proceedings (Online), (2009)