I think this is really great. I started iOS development a few months ago and I find one of the hardest parts about making applications is differentiating the design. While I like the standard iOS design elements, to make a professional looking application you have to spend a lot of time tweaking the design. For me specifically it has been UITableView and the corresponding cells. I am glad that this gives me another option to explore and obviously I would have to customize this as well. But its a step in the right direction and hopefully other companies follow suit.
Maybe its just me but what would really make my day is some sort of equivalent of Bootstrap for iOS applications. A set of Objective-C classes that standardize and make it easy to quickly reach a certain level of quality design.