It feels like just yesterday that we saw T-Mobile's original 4G Mobile HotSpot at CTIA, and already the purgatory-presiding US carrier is ushering out a successor. Alongside the Galaxy S II and Amaze 4G, the Sonic 4G Mobile HotSpot is being revealed at Mobilize, and it's hailed as the carrier's fastest ever in the category. Predictably, it'll enable five WiFi devices to hop onto T-Mob's HSPA+ 42 network, and there's a microSD card slot for handling file transfers. The wow factor comes courtesy of the embedded OLED indicato
