Despite cranking out plenty of high-end devices in Asia, Pantech has built itself a reputation in the US as a budget OEM -- but continues to improve its products regardless. Having already proven its ability to crank out LTE phones on the cheap with the Burst, it appears ready to follow up with another phone on AT&T's next-gen network, as evidenced by documents released by the FCC this afternoon. This particular handset, dubbed the Magnus on its WiFi