iPhone app for WordPress sites?

I recently developed an iPhone app that was basically just an RSS reader for my site and it got me thinking…

I was wondering if there was a tutorial out there or some sort of documentation on how to translate your WordPress site into an iPhone app.

I guess in it’s simplest form, I’m looking for something that will use my WordPress site to display the following in an iPhone App.

– List of stories (just headlines)
– Click on a headline and get 250 characters or so of the article
– Underneath the shortened articles are the first 5 comments or so
– On the top part of the iPhone can be categories from WordPress

Thanks in Advance!