Looks like Iridium Go is selling well. It should have long shelf time.
Here is a Review of the New Iridium GO and a comparison with Globalstar Sat-Fi. Iridium GO is the only portable hot spot which can reach every corner of the world.
http://www.outfittersatellite.com/blog/iridium-satellite-phone/review-of-the-new-iridium-go.html
http://www.outfittersatellite.com/blog/globalstar-satellite-phone/globalstar-sat-fi-review.html
You can find a unboxing video in Youtube:
Regarding Iridium Next:
Orbital Begins Production of 81 Satellites for Iridium NEXT Constellation at Its Gilbert, AZ Satellite Factory
http://www.marketwatch.com/story/or...t-its-gilbert-az-satellite-factory-2014-03-27
Iridium Next, which will provide a variety of mobile satellite services to users across the globe, is expected to be fully deployed by the end of 2017.
http://www.spacenews.com/article/sa...ecom-infrastructure-upgraded-for-iridium-next
The existing constellation of satellites is expected to remain operational until Iridium NEXT is fully operational, with many satellites expected to remain in service until the 2020s.
http://en.wikipedia.org/wiki/Iridium_satellite_constellation