Well that was quick. Developer DroidVicious over at RootzWiki has almost ported his ViciousMIUI ROM over from the Thunderbolt to the Galaxy Nexus LTE. Before even a day had passed, he had calls, call audio, and data all working perfectly. The only feature currently broken and acting buggy is WiFI and the softkeys. Though we'll have to wait for a WiFi fix from him directly, we can mend the softkey problem by downloading Soft Keys from the Android Market.