Definition: "Slippy Map"
I was talking to John Frank, founder of MetaCarta, the other day about the future of Google-like map services, and he defined what he calls the "slippy map":
"A "slippy map" is type of web-browser based map client that allows you to dynamically pan the map simply by grabbing and sliding the map image in any direction. Modern web browsers allow dynamic loading of map tiles in response to user action _without_ requiring a page reload. This dynamic effect makes map viewing more intuitive."