HowFar 0.b9 - How Far? is the first version of a set of PDA tools for pilots and frequent travelers. How Far? sets the user location as the origin and queries for a destination. Only a part of the city name or airport idendifier needs to be entered. Given two valid locations, the  program calculates the distance (Great Circle distance) and initial heading between the two locations. The program displays an approximate course line on the map. Currently, the program includes 65 locations (generally major cities). Great Circle distances may not be accurate for very short trips.