MiFi at WalMart?

        "Here's an interesting service that apparently will soon be offered at WalMart: MiFi with no expiration date. This type of service isn't new, but having no expiration date (if used once per year) and no monthly bill (or contract) sounds intriguing for casual use of the Internet when you're traveling," Jim Hamm says. 
        Have you heard about MiFi?  Here's an article.