Just found this deal. A T-mobile 4G card with $15 refill card for $20,
I'm flying south in a few weeks for a short trip and have been thinking of getting such a network card for my laptop, mainly to test the concept, as I know next to nothing about the technology. Is this something I should jump on? With these types of cards will I at least be able to get 3G if 4G isn't available? Is a $15 refill card significant? Or will it get me basically nothing in terms of the amount of time I will be able to use this, given that I don't go overboard? Any wisdom imparted would be appreciated.