Most mobile internet plans have limitations, one of these being coverage. Sure, most developed places are covered by mobile signals, but if you travel frequently to areas with no cell towers, then you might have a problem getting a good signal (or any signal, for that matter.)
Cue the Iridium GO! Mi-Fi that can connect to up to five devices to provide them with internet, anytime and anywhere in the world. Iridium connects with a large network of satellites, allowing you to make calls, send emails, and browse social networking sites once you’re connected.
Iridium GO! is described as a “rugged and portable unit creates the first ever reliable global connection for voice and data communications on up to five smartphones, laptops or tablets” on its product page. The unit itself will cost you a rather hefty $800(USD), aside from the data plan charges you’ll have to deal with upon usage.
You can find more information here.