What do you call networked devices that talk to vast data repositories and are controlled by software interfaces on devices other than the device at hand? That's what trivergence is all about. The iPod Shuffle is an example.
Minimalist looking web page with a very nice, brief description about its topic. Also has link to oodles of scenarios contributed by others around a single topic.
Insightful essay on what makes applications usable - applications of all kinds, including CAD systems, scientific visualization tools, and massively mult-player online games.