I purchased the pre-paid Cricket Broadband service for my Apple MacBook and it works great. I got the A600 modem.
Easy to buy, setup and use.
They give you 2 free days to try it out. It worked well around town here in Albuquerque NM so I bought a top-up card and I am good to go for a month.
Getting 750 Kbps down and 120 Kbps up. Perfectly adequate for general Web browsing.
I do recommend it.

Recommended: Yes

Amount Paid (US$): 69.99