The portfolio site of Erwin Bauer takes a different approach to using a pannable user interface, but implementing in JavaScript rather than in Flash. The site allows users to click and drag to pan the canvas, or to use links positioned around the content to move around. The design is clean, and mimics a design document with regisration and crop marks, and visual cues about the directions the canvas will pan to when you navigate.

http://www.erwinbauer.com/