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I have a similar idea, because I'm unlikely to actually record all my metrics after a workout.

My current solution is to take one picture of the machine's output display per workout, then I (hopefully) add them to a Workout album.

What I'd like to do is have an app which scans these photos and pulls the numbers out to log them and draw graphs automagically.

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So it would only target cardio machines, correct? I haven't included any support for cardio machines yet, mostly because I didn't think a voice interface could improve the process of logging a cardio workout. One thing is that the type of cardio that you're doing would have to be provided some other way -- I think it'd be nearly impossible to extract the type of machine that you're using from a photo, although picking out the workout details from a photo of the display should be possible.

You're correct. I'd also like to experiment with what could be done wirelessly as well -- I notice the ZigBee protocol is quite popular in fitness & healthcare. Have you explored that at all?

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