Twelve South BookBook for iPhone 4/4S
Looking like a well-worn book, Twelve South's BookBook Case for iPhone 4S takes a cue from their cases for iPads and scales it down to the size of an iPhone. Most people will assume you've taken out a small Moleskin notebook or a small antique tome; the case not only houses the iPhone, but it also stores ID and credit cards. It adds an additional level of functionality, though having to open the "book" to answer calls may be awkward to some. However, if you're looking for an elegant case that's sure to start conversations, add the BookBook case to your shortlist.