There is a new Breathalyzer iPhone app in the neighborhood, DuiPhone. The cleverly named hack measures the alcohol content in your breath to see if you are sober enough to drive. This can also be told without the use of an iPhone app by if the room is spinning or not.

Also, by hack we don’t mean your usual "tinker with some code" type thing. You have to literally affix a Breathalyzer to the back of your iPhone. If you have that kind of time on your hands, and you are an alcoholic, this might be a match made in drunken heaven. Check the video below: