HTML content on iPhone braille displays

I'm a software developer with a very recent interest in braille support. I typically write my application help in html, and I wondered how do the braille display devices handle it. Say If I have a paragraph of flowing text in English, will the display automatically turn it to contracted braille? How are headings, lists and other basic html elements handled? Is there a difference in how Safari, which is the browser iPhone and iPad, behaves in comparison to UIWebView, which is the standard html display engine available for applications? If I write html help for braille displays, are there formatting recommendations? Thanks, Harri http://mpaja.com/