Oh, look at that, it's ten o'clock and my kids are at:
39 01'17" N
77 22'43" W

Performing lat/long lookups by cell ID only gives you the FCC Registration of the lat/long coordinates of that tower. Danger had the same cell tower ID and coordinates available in their Hiptop SDK for the T-Mobile Sidekick before they removed it from the API for privacy concerns.

I'm *much* happier with my N810. I can usually keep a 5-satellite lock on a bus or near a building window. I can usually keep a 7-satellite lock when driving my Xterra or Forester. Acquisition times when warm/hot (near/at last location) have been 30sec-2min, and 2-6min when "cold" (unknown location)