There's no way in hell it's going to be that accurate. Get real.
Sorry to squelch your cynicism, but it is that accurate. Check out the
SkyMap app by Google for Android.
The universe in your pocket
With Google Sky Map for your Android phone you can discover and browse the night sky just by pointing your phone to space.
By using your Android phone's orientation sensors, we can show you a star map for your location. Explore planets, stars, constellations, and more! Learn the name and location of space objects and impress your friends.
Features
Search: Find planets, stars, and constellations guided by your phone.
Motion detection: Sky Map uses your phone's GPS, accelerometer, and compass to create a window in the sky that moves with your hand.
Celestial objects: Browse a map showing the brightest naked-eye stars, planets, sun and moon, constellation lines, horizon, cardinal points, and Messier Objects.
Navigation: Use automatic mode to let Sky Map adjust the map for you or switch to a manual mode that allows the map to be dragged with a finger.
I see no reason that Google won't release this for the iPhone.