You can use LinkUp GPS Save-Share-Navigate to generate device specific links to help friends navigate to your exact location.

I am going to use this so I can let my wife know where I am in Walmart. The store is so freaking huge that you might get lost in there for days.With LinkUp GPS I’ll be able to message her with a link that maps out my location (electronics) in the store. I wonder how well it will work indoors?

If your friends have Android or IPhones, LinkUp provides device specific links that will allow them to navigate directly to you with with one click from their phone! Say you’re at a soccer, baseball or football game and your friends have seats elsewhere, don’t waste game time and send them a link to let them find you!

Get LinkUp GPS in the Android Market
https://market.android.com/details?id=com.dogsboro.HookUp