How to remove location from my iphone taken photos?

Do I just turn off gps from my phone?

Literally, I just noticed that my mobile photos include my gps location and some guy on a dating website I met pointed it out, and then showed me a google map location of my house. How creepy!

Turn off GPS now!

I had that happen to me. Honestly I've done it to other people once I found out some pics could have your pin point location. Turn off your GPS and then screenshot those pictures you still want to use.

Apple has a running 'dark' history of tracking your iPhone movements, and perhaps more… Apple is not talking much about the details.
http://radar.oreilly.com/2011/04/apple-location-tracking.html
See this site for digging into your phone's records to see if reality meets your expectations:
http://petewarden.github.com/iPhoneTracker/

It appears that these databases are stored on the phone automatically, to what end can't be guessed…
Take out the battery will end the cell tower triangulation/location mechanism.