Based on your questions and your last comment... let's be clear here. You aren't wanting to make an app just to view content right (ala plugin)? The purpose of the native app route is to provide better/easier/more interaction with your site/web application. If it's just another way to view the site, I would just do an iphone optimized site ala m.digg.com, espn, foxnews, cnn, etc.