There are all sorts of cool cases on the market for smartphones of all kinds whether you carry an iPhone, Android device, or a Blackberry. You can find a case that won't make people that see you carrying it want to beat you senseless. Just for the record, this hoodie carry case for your smartphone is a case that will make people want to beat you up.
I will go so far as to say if you buy this case for your smartphone, you should get a free punch to the testicles from Mike Tyson with it. The hoodie case has a strap to let you carry the thing over your shoulder like a purse. That strap makes this seem more focused on girls, and we can cut them a bit more slack for carrying this. That said I would still point and laugh.
The image shows a Blackberry inside the case, but it is universally sized to fit a bunch of different devices. The case measures 4" top to bottom and is 3.5" wide. It should fit the iPhone too. You can grab the thing up for $9 and only one (thankfully) is available on Etsy.