Since the promise of unlimited 3G internet access via AT&T on the iPad has evaporated into the mist, the makers of various mobile WiFi hotspots have been nosing around the iStuff market with solutions aimed at iPad, iPod touch and iPhone users who don't want to pay full freight to AT&T.
Up until now, the products or concepts we've seen have all been capable of supporting any WiFi-enabled device that you might want to use with them, but
