Both Tim (Letter to Jane) and Buzz (Tumblr) wrote today pleading for better text tools on iOS. Natalie and I have recently felt similar pain working on a text-heavy iOS project. I assumed this was a research problem — how could iOS not include superior text handling? — until I actually started doing research and quickly found myself muddling through the CoreText reference in PDF… suboptimal.
There are a kajillion examples of CoreText code on Github that may be of use, including projects like Attributed Label, FTCoreText, DTCoreText, and the OmniGroup's text well inspector and RTF reader*. But if you are ready to give up, this gallery of beautiful (and free) font treatments available from Google is impressive.
* That may be what you want, Tim.