Sony's new mondo handset, the Xperia Z Ultra, was just revealed to the world today, and so it should come as no surprise that the new phone has just received Uncle Sam's seal of approval. That's right, folks, a version of the 6.4 inch device sporting 1,700MHz HSPA and GSM 850/1900MHz radios has passed the FCC's battery of tests. Alas, despite its cell