Details are understandably scarce at the moment, but Navigon is apparently taking its 1+ year old 5100 navigation unit to the max. The predictably titled 5100 max has reportedly just seen its way into the FCC's lair, and we're told that it'll feature a 4.3-inch display, Bluetooth, text-to-speech and lifetime traffic / Zagat ratings. As for price and availability? We'll have to wait for the official word from Navigon on those bits. In the meanwhile... Rockford or Chicago?