It's doable, but I skipped it in the HN reader for iPad that I did. Why? Because of the people I know who read HN, none of them use OpenID. Unfortunately, the

It's doable, but I skipped it in the HN reader for iPad that I did. Why? Because of the people I know who read HN, none of them use OpenID. Unfortunately, the mobile Safari doesn't share that information with the app UIWebView. It needs to be handled within the app itself. (although you could get around it in my version but manually logging in from the comments page)