This plugin looks to be super useful for people wanting to blog about iOS apps. It even supports the affiliate urls.

In any post or page, insert the following shortcode: [ios-app id=”1234”] (where “1234″ is your application’s App Store ID).
You can also specify a download link like this: [ios-app id=”1234” download_url=”http://www.yourlinktrackerurl.com”]

Download The Plugin Here