I am looking for a weather app that will track my iPhones current location, so that I can receive severe weather alerts where ever I might be. The two apps I am considering purchasing are MyWarn, and iMap weather radio. Do any of you have either of these apps, and if so what do you think of them? I will be away from home for 3 weeks next month, so I would like to receive any severe weather alerts where ever I'm at with my iPhone 4S. Any recommendations/thoughts will be very much appreciated! Thank you.