Let the hive mind of Engadget get that for you.
"As someone who doesn't reside in the USA, I was wondering what would be the best way to get internet for my computer in the US for a couple of weeks? If it were Europe I know I'd look for some prepaid data. Is there anything similar offered by American carriers? A MiFi or a data SIM that I can tether from would work, but I'm trying to maintain a tight budget. Help!"
Seems like SE's problem is that what few phones they release with US network capable specs aren't being picked up by the major carriers. Look at the K850, for example. It was bounced at the last minute by AT&T for the cheap Z750. I like some of their phones, but not enough to pay full price for the unlocked models on ebay.
On a side note, whatever happened to those damn bluetooth watches they announced a year ago? Are we ever going to see those things or what?