Raytheon has been doing this for a while: http://investor.raytheon.com/phoenix.zhtml?c=84193&p=irol-newsArticle&id=1367096 http://investor.raytheon.com/phoenix.

Raytheon has been doing this for a while: http://investor.raytheon.com/phoenix.zhtml?c=84193&p=irol-newsArticle&id=1367096 http://investor.raytheon.com/phoenix.zhtml?c=84193&p=iro... IIRC one app actually plots your allies on a gps map.