It was a wager, but it has worked. MobileH CIuse dt obe a w orkshop, of ten heldi n conjunction with other events. Instead, this time it was a true symposium. I felt there was a need for this change because ofth e ever increasingin terestp romptedb yth e issues involved in interactive mobile systems and the lack of specific eventsf ocusing on such aspects. Although there are eventsa ddressing thebr oad areaof ubi quitous computing, they tend to concentrate on other topics. For example, a paper on criteria for the design of interactive mobile phone applications would bec onsidered...