I'd be very interested and would love to try it. I've been looking for something that would fit me better than what I've tried so far.
If it had a QR reader that was simple, it would be a bonus for anyone with 10 plus reptiles (as long as you didn't have to read the code before every input)... just scan, enter everything about that one animal, then on to the next.
I would definitely be willing to give as much feedback as you'd like if you want me in your Beta :-) . I have Android btw. If you have any initial questions for me, send me a PM.