The settings screen Settings ▸ Location Services ▸ System Services in iOS 5.0 contains the following boolean options:
- Cell Network Search
- Compass Calibration
- Diagnostics & Usage
- Location-Based iAds
- Setting Time Zone
This is fine, but:
I have never used an iPhone before and don't understand what each of these services does, so I'm not well enough equipped to be able to make this decision.
Where can I find Apple's documentation of these options? I tried asking in Apple Support Communities but didn't get a helpful response.