perhaps you heard my wife lost her wedding ring http://bushcraftusa.com/forum/showthread.php/120318-lost-wedding-ring-need-advise/page4 I have a new Iphone 4 but I am old school and do not know much about such technology. Can you give links to tutorials that will help me use google maps in the woods? This can help me find my wife's ring. I need to hike back to the camp location, lock in the coordinates, then I can get there easier and maybe even have others help find the ring. But I don't know how.