This won’t help my old Suunto Spot watch. But, if you have a Garmin nuvi GPS (780, 880, 5000, 750, 760, or 2×5 series) that supports it, MSN Direct Send to GPS…
MSN Direct Enables Web Sites to Deliver Location Information to GPS Navigation Devices
…allows any Web site to offer visitors the ability to send addresses, business listings, or other locations directly from the site to their GPS unit, eliminating the cumbersome step of re-entering or searching for the same information on their navigation device. Nice…