Another day, another seemingly useless iPod accessory. This thing serves 2 functions, FM transmitter and, more interestingly, breathalyser. The guys selling the iBreath are saying you should use it before you drive to find out if you’re actually sober enough to drive, but I have a feeling this is going to be used a lot more when your buddies are sitting around the apartment and somebody claims to be the drunkest in the room, and somebody else argues that they are actually the most drunk. If you are, however, inclined to use this thing for its intended purpose, you should probably keep it in your glove compartment. It may keep you out of jail.