The oft-rumored Nexus 5 is turning into quite a riddle. If you've been following the saga, there has been no shortage of drama in recent memory. Most recently we saw a Google employee snapping pictures with an unknown LG-branded Nexus device at HQ in Mountain View -- in an official video, no less, which was almost immediately taken down -- and now a smartphone dubbed the D820 has been approved by the FCC. Certainly, we don't want to just assume that every LG phone getting Federal approval for the foreseeable future is an N5, but there are a few clues in the paperwork that give us plenty of reason to nail thi
