Interesting topic at the Game Design Conference in San José: "Cross-Platform User Interface Development".

Rob Caminos and Tim Stellmach take you on a tour of the pitfalls of designing a cross-platform game UI--as in one that will work on both computer screens and the severe limits imposed by the main console displays--the home television set.

The part The Design of Everyday User Interface is also important in terms of ergonomics (reference to Donal Norman's book 'The Design of Everyday Things').