UISomethingView for formatted scrollable append-able text

Question

I was wondering if someone could suggest the correct control to use for displaying rich formatted text on an iPhone. The requirement for this text is kind of like a log file where as things happen in my code they will be appended to the bottom of the scrollable log on the iphone screen in a view. Its important that I can use different fonts/colors in the same view however this seems to limit my choices.

I started out looking at UIScrollView which led me to UITextView. Seems that UITextView doesn't support different types of formatting so it led me to UIWebView. UIWebView however seems tuned to displaying web pages and the like.

Can anyone suggest how to attack this or am I in for subclassing the plain old UIScrollView?

I want to replace NSLog(@"Some event happened"); with something that writes to the onscreen log instead

Thanks in advance!