Uh... Phones have had GPS receivers in them for YEARS, you're a little behind the times.
I log into the Lookout website, click find my phone and it tells me which room of my apartment I left it in. Hell, I can tell if I left it on my desk or lost it in my couch.
No, you just misunderstood what I said. I said cell triangulation (eg, what carriers can do) shown on CSI isn't actually real. Apps you've installed or the OS certainly can by using the GPS, and that's probably how Apple tracked it. But the guy I quoted was bitching about carriers not helping him find his phone.
GPS != cell tower location