Steve Freeman

Sheffield University Computer Science has a course in which the students get to work at a real company writing real software for real customers using XP. The fourth years coach the third years, and the whole thing is self-funding. A great way to get experience of the whole lifecycle in a safe environment. via Alan Wills

Fred Tingey and others came up with the notion of Reverse Waterfall:
* Start with a working system
* Test it thoroughly
* Write the code
* Design the implementation
* Describe the requirements
Sounds a bit Agile to me.

Kent Beck described his Galactic Modelling Language (GML) — on an index card of course:

These symbols mean, um, exactly what you want them to mean when you write them on a napkin.