Yes, sjgadsby is right - MiFi is another device. However, it's smaller than my N800, has a great battery life, and serves as a wifi hotspot for up to 5 computers within 30 feet. It's a great option for those of us who live in the sticks and can't use cable, DSL, or satellite (it is SO much faster than dial-up!). Verizon subscription is $60/month - only downside is the 5 Gigabyte limit. I use it with my N800 and my thinkpad, while my son is also online with his thinkpad. MiFi usually stays at home, as most of the time when I am out and need internet I can use a free wifi hotspot. If I needed to take it with me it's not much more hassle than carrying a credit card.