Great entry md. However, being the luddite that I am, what are items 2a and 2b? Are these similar to a mifi? Do I need one (odd question I know, since if I don't know what it is, how can I be missing out!). I take it that this is more for visitors that don't have a data plan...in which case, more than happy with my unicom prepay data plan and my samsung.

tb