Helio adds New Location Services - Drift

Drift (Location Based Services) capable phones, Samsung for now, will have access to turn by turn driving directions. It uses Google maps including traffic updates. Drift owners will also get to use Buddy Beacon, a location-based friend finder, to locate and call nearby friends who opt to be found. The other feature is to text offline friends requesting that they turn their buddy beacon on.

Q: how much is the Drift service?
Q: How accurate is the direction?

I haven't seen too many of this buddy list feature in the major, esp CDMA, carriers yet. I can see this "community" service would work well in college campus.