Why is GPS Satellites & Signal Strength omitted from the iPhone SDK?

Doesn't the smart phone GPS triangulate using cell towers not satelites in orbit?

I have not seen an app that does what you want- like what you see on the garmin. I think there may be a reason to it...

The iphone gps is much much weaker to any modern gps reciever- I believe the iphones is ~5 years old. I do know that the dedicated gps recivers are much more accurate than the iphone. I think your only way is to get all of the devices on the dash, and just film them all. I do know some apps that will give an acuracy-but i cant name them. Spedometer I think, but i have never gotten better than 17M on it.

Yes, there are several:

The app "GeoLocation" (free) by "Internetik LLC" may be what you're looking for, as although it does not show the satellites and signal strength, it shows the exact latitude and longitude co-ordinates of your device as accurately as possible using the in-built GPS receiver, which may help you test the accuracy of your iPhone's GPS compared to other GPS devices if you already know your precise co-ordinates, as the one closest to where you are actually standing would indicate which is the most reliable / accurate GPS device.

Another app - "myPosition" (free, ad-supported) by "CodeKing", also shows your latitude and longitude, but unlike GeoLocation, from this information it attempts to work out what street, city, and state you are in (within the US, I haven't been able to test this one as I live outside the US).