An enhanced mobile communication device, or on-board equipment, communicates
according
an enhanced ad-hoc mode of communication and an infrastructure mode of communication.
A method switches between the enhanced ad-hoc mode of communications and the infrastructure
mode of communications. The enhanced mobile communication device receives content
and updates a geographic database. The enhanced mobile communication device reads
the geographic database and transmits content. Data, such as location information
from global positioning satellite signals, is collected by the enhanced mobile
communication. On-board software of the enhanced mobile communication device communicates
with the geographic database for computing routes, paths, and turn-by-turn direction.
