http://www.satcase.com/
UK-based SATcase has launched a satellite communications device of the same name. The case can transform a standard smartphone into a satellite phone, ensuring that its user can communicate no matter where in the world they are. The device contains a 406 beacon that can help SAR teams locate people quickly and accurately and is also capable of reaching frequencies that can be utilised by SAR teams searching by land, air or sea
(in built VHF emergency radio)
At this stage fits the Samsung Galaxy, It is still pre production, but they are taking orders
Check out the FAQs
http://satcase.com/faqs
Regards Overlandman