How does the Reader function of Mobile Safari in iOS 5 work? How do I enable it on my site. How do I tell it what content on my page is an article to trigger this function?<
The p tag theory sounds good. I think it also detects other elements as well. One of our pages with 6 paragraphs didn't trigger the Reader, but one with 4 paragraphs and an img tag did.
It's also smart enough to detect multi-page articles. Try it out on a multi-page article on nytimes.com or nymag.com. Would be interested to know how it detects that as well.