The implementation of span_range (and also interval()) is surprising to me, and is not what I would expect from a range function.

            >>> start = datetime(2013, 5, 5, 12, 30)
            >>> end = datetime(2013, 5, 5, 17, 15)
            >>> for r in arrow.Arrow.span_range('hour', start, end):
            ...     print(r)
            ...
            (<Arrow [2013-05-05T12:00:0

I'd like an /Examples folder with some simple iOS apps showing how to use Time.

The first one that comes to mind is a basic iOS app using a UICollectionView to build a month calendar view.