International survey of nontraditional marks

This excellent site, available in English or German, includes useful surveys of applications and registrations for smell, taste, sound, motion, and other nontraditional marks -- a topic I'll be covering in my trademark class on Tuesday. It seems hard to imagine a taste mark that would be distinctive of the goods and nonfunctional, since (unless you're a baby) you tend to taste objects only when taste is a product feature.