According to the guys over at German site MobiFlip, Google and LG may have pulled a fast one on us by very subtly updating the Nexus 4's design. The changes appear to be quite minor (yet useful), with the addition of small "nipples" on the bottom of the phone's backside being the most notable. Why would Google add such a small difference, you ask? Because as it stands, the N4's back is completely flat, which essentially mutes (or drastically muffles) the speaker when the phone is laid down. It's incredibly frustrating, and as a result I've missed several texts and phone calls since getting the N4.