Watch out for a rash of retouched iPhone photos appearing on Facebook. Adobe has announced the release of its Photoshop Touch application for the iPhone. Previously, the app was only available for the iPad, but it's now available for $4.99 for the iPhone 4S or later, fifth-generation iPod touch and Android phones that run Ice Cream Sandwich (4.0) or later. This version includes the same features found in the iPad version of the app, including layers, selection tools, adjustments, and filters.