3D photo apps are not new to the iPhone platform, but a new app from Juicy Bits looks promising in terms of making those pictures with depth a lot easier to take and view.
3D Camera 1.1 [US$1.99, click opens iTunes] is now available for iPhone OS 2.2 and 3.0 devices, and it lets you take photos that use one of three methods to create the illusion of 3D: red/cyan anaglyphs that require those funky 3D glasses, stereograms that create 3D images when your eyes look at them a certain way, and wiggle stereograms (or wiggle-grams) that use animated GIF images to provide the "depth". If you need a place to buy the goofy glasses, Juicy Bits lists several sources on their website
To take the photos, you use one of two methods. If you're planning on taking an anaglyph or sterogram, you take one picture, move the iPhone camera slightly to the right, and take another photo. To make a wiggle stereogram, you point directly at the same object from two slightly different vantage points. The app provides instructions on exactly how to take the two photos each time you launch it.
How are the results? Well, I haven't tried a red/cyan anaglyph yet, but if you use "crossviewing" (crossing the eyes slightly so that the two images overlap and form a third 3D image) you should be able to see depth in the test image seen below. If you use 3D Camera or any of the other 3D photo apps for iPhone, be sure to send some of your best pics to our Flickr pool: http://www.flickr.com/groups/tuawrigs/pool/