It is a no-contract, unlimited data 3G device for $10 /10 days (100 MB limit) or $40 a month (unlimited). It loads -- BAM! -- here in the urban area. Don't know about rural. But it's going to be my traveling companion from now on. You do NOT hook it to your computer. It just sits nearby. You can run up to five mobile devices off of it. It's got only WPA security, but that'll have to be good enough.
On Edit: Funny ... it does pretty well with YouTube (at least as well as my home DSL -- a few streaming farts here and there), but the picture-heavy Huffington Post gives the card terminal gas.
I had a few hiccups (staying with the bodily metaphors!

If you decide to get one, go to this web site because it's $149 there and at Amazon it's about $240.
Here is a CNET story.