As someone who has done integration with Iridium and Inmarsat for the NSF, I both love and hate this product. It looks like a ruggedized wifi hotspot, but their claim of "works anywhere" is disingenuous.
Very straightforward. Iridium phones have a module you can use that exposes an RS232 interface; integration with either a microcontroller or a full blown computer is trivial.
This is a hotspot that works anywhere in Africa: http://www.groundcontrol.com/MCD-4800_BGAN_Terminal.htm