You mount the iPod on the rifle's RIS and get down to assassinating something without all that time calculating wind speed, muzzle velocity, and law enforcement response time. This way you can be sure that your target won't escape into his home or workplace you frightening bastard.
Photo Courtesy of: Link
You just touch/tap in details about the wind conditions, ammunition type, distance to the intended target and even the wind speed. The application has profiles for three weapons already in it including the M110 semi-automatic precision rifle, the KAC PDW, and the 14.5in SR16 rifle. All of you really scary bastards have already thought of 12 rifles that aren't included but never you fear, you can add more weapons into the app as you stockpile them in your secluded woodland compound.
Next time you're rocking out to a little Dokken and your target unexpectedly approaches, you won't miss the bounty because you didn't have time to calculate. Just pause the music and get your firing solution.
You can also get the iPod breathalyser. Hmmm, Now that is not a bad idea, do you know how much one of those things costs. I'm all about not getting pulled over for DUI by some overzealous, failed-career-military, outback, nazi, law-enforcement, Johnny Law type with a self done high 'n' tight and a hard-on for sticking it to "perps". Hell, he's probably touching in his firing solution while I'm breathalysing myself.