Scan Barcodes and Images with Moodstocks and RubyMotion
Moodstocks is a company that provides an image recognition and barcode decoding API for mobile apps. Their product is really astonishing as you can see from this video.
They have been working on integrating their SDK with the RubyMotion toolchain and published their results:
RubyMotion is a revolutionary tool. It not only offers developers a new way to build iOS applications, but also shows great experimental spirit.
Check out the demo app! Also, if you are looking for a higher-level wrapper, make sure to check Motionscan (which is a work-in-progress).