We picked up a cheap GPS device made for the Palm III and used the instructions from Walter at radiohound.com to remove the 12 channel GPS board from the unit.
The number of service unit operators, who keep the oil flowing from wells and remove obstructions such as stuck pipes and casings, is up by a fifth, to 30, 440 from 25, 360 a year earlier, putting them at number three on our list behind aircraft assembly workers.