This is where I actually was :-) About 60-70m out. Not bad, considering we're in a bad GSM signal area here, which wouldn't have helped with the phone location method of calculation.
(Dell Axim X50v, running GPS Info, pictured...again, not a REAL phlog pic ;-)
(Dell Axim X50v, running GPS Info, pictured...again, not a REAL phlog pic ;-)