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.