During the barcamp at Droidcon London 2013, I gave a presentation concerning the implementation of an OCR solution we recently developed for a customer. This was, of course, great fun!
Those interested can find the Prezi-slides over here.
This post will later on be updated with links to demo code and a recording of the actual presentation.
[UPDATE 1] Now with code: https://github.com/ptommassen/ocr-demo
[UPDATE 2] The presentation can be watched here: http://skillsmatter.com/podcast/home/adventures-in-optical-character-recognition/hg-8591