Stefan Matei

Applies a lightbox to all image links if and only if the screen is big enough to fit a lightbox. 
Because lightboxes on iPhones should be illegal.

Conditional Lightbox

Use a lightbox only if the screen is big enough.

Adam D

The AppStore Lookup is a simple WordPress plugin that provides shortcodes for querying Apple’s Lookup API to get app data from iTunes or the Mac AppStore. You can modify it as you wish, or use the built-in options to make it fit the needs of your site.
Features:
<ul>
<li>Lookup and display data from Mac App Store and iPhone/iPad App Store</li>
<li>Display App icons</li>
<li>Display App screenshots</li>
<li>Up-to-date app ratings information</li>
<li>Add Smart App Banners for iOS mobile Safari</li>
<li>Use your Linkshare ID for download links and Smart App Banners</li>
</ul>
<a href="http://adamdionne.com" rel="nofollow ugc">Support</a>

AppStore Lookup for WordPress

Adds shortcodes that display data from iOS and Mac AppStore applications.

Conditional Lightbox vs AppStore Lookup for WordPress