Just yesterday I mentioned a tutorial on utilizing Core Text to create magazine style apps with rich text formatting and multiple columns, and I have previously mentioned the NSAttributed string additions library that was created to allow for easy display of formatted text using HTML without using a UIWebView.
I’ve come across an open source project that provides a drop in UITextView replacemen that includes text formatting capabilities. So you could potentially not only display formatted text, but create a text editor with formatted text support.
The library and example project can be found on Github here:
Looks very useful if you want to add formatted text support into an app quickly.