A friend/ colleague has developed an app that can convert drawings to HTML including maps, widgets text content. It is a phone app (android) and employs open source image recognition. See http://www.kickstarter.com/projects/appseed/appseed-turn-sketches-into-functioning-prototypes for detes,
You can see more about Gregs app on Wired
http://www.wired.com/design/2013/09/appseed-transforms-your-sketches-into-app-prototypes/
Uses openCV
I can't find this app anywhere