SpiderBasic

maybe you can map this into basic commands
http://www.w3schools.com/html/html5_geolocation.asp

The underlying abstraction libraries SB uses have actual GPS support where you could programmatically enable GPS with the user prompt and wait for satellite acquisition, or use the hybrid mode that uses wifi+GPS+ip etc..

I beleive the high-accuracy version you can use without even activating the GPS.

EDIT: Also most browsers have a setting to allow this I believe and a UAC even when it's enabled. On mobile it might work without UAC. It makes it kind of less stable than the GPS API.