Turn your iPhone into a personal GPS tracker which can be used in conjunction with a RASTRAC Live Tracking web account (www.rastrac.com) to track your devices movements based on distance, speed, and turn detect (e.g. send position when speed > 70 mph and/or device travels 1 mile).
PocketRASTRAC also includes the ability to send statuses (e.g. Clocking In, Clocking Out) and form messages (e.g. fuel receipts, including dollar amount, method of payment, etc.).
Continued use of GPS running in the background can dramatically decrease battery life.