Bellwether Games interviews designer Ed Marriott (Scoville [unpublished]) [Link] I look forward to Bellwether's monthly designer interviews, and Marriott's interview is no exception. He details the prototyping and design process. Here's an excerpt I liked:
Simplify! In the game design process it is so easy to add more and more little rules to cover the “what-if” scenarios in your game design. I always recommend starting simple and adding detail only when necessary