2011-08-06 21:54:47.027 HelloThere[14495:707] Location: <+54.98113046, -1.59312152> +/- 97.95m (speed -1.00 mps / course -1.00) @ 06/08/11 21:54:47 GMT+01:00
yeah, the gps is working on the iThing.
I just followed this simple Core Location Tutorial, not an openFrameworks one, however. It gives also a basic introduction to interface building with Xcode on iOS.