Me too. I was really hoping for an app that could take a scan of a handwritten diagram / mockup, and "recognize" the shapes, converting them into objects that could be manipulated (resized, removed, repositioned etc) through the app.

I am waiting for this app as well. With AR-style overlay of the already placed wireframes over the camera picture, making positioning/sizing very easy: just move your tablet, and press the shutter once the new stuff is in the right place. lets start this with OpenCV on Android.

What exactly did you mean by "a different sense of recognition"?

in this context it would involve some kind of media-transformation, say from paper to mockup via webcam.

I interpretted the recognition to be of the actual wireframes itself, which allows for the user experience at the wireframe stage. Is that correct?

You interpretted it correctly. The actual wireframes itself are recognized on-line so you can directly move elements around or test your wireframe.