WorldBoard - Web with a GPS future-wearable twist.
GORP - Great Outdoor Recreation Pages continues to lead.
The Adventurers - Gary & Joanie McGuffin trek all over the place while cybercasting, doing exactly what we at DEX are talking about.
The Binary Biker Project - May it live long past SIGGRAPH!
The Shape of Things to Come - Wonderful piece from Mobile Computing's June 1998 issue surveying cutting edge design from commercial and academic innovators.
SIGMOBILE - from ACM.