We had the great pleasure to have Ed H. Chi from PARC for the afternoon and evening in Essen. Ed gave a keynote at Mensch und Computer 2010 and we took the chance to discuss some of our work with him. From eye-gaze based security, to social TV and vibration notifications he got a broad overview of the work we currently do.
Ed, thanks again for the feedback and the many ideas you shared with us!
On the way at Essen train station we could show a real world example that usability is not restricted to computers and that common sense is not enough to design usable environments. If you are between track 1/2 and 3/4 and you look towards the main electronic train time table you better be not taller than 10 cm - otherwise the traditional signs will block your view (an so far I have not seen such small people inEssen).