>I would easily pay $10/m for a "personal" version and I know companies that would pay 2x - 3x that for enterprise deployment. Although to an extent - it's redundant now that we have phones with biometric authentication.

You're off by a factor of 10 on how much a service like that will cost, especially in enterprise.

What do you want to use it for? Can you not using something like Google Authenticator for 2-factor auth?

I imagine that beyond the obvious "what if I lose control of my device(s)" justification people really just want dead simple authentication. It's a password you always have on you and as long as it's never copied its quite secure, atleast in that you have a complex password unique to you that can be applied in an instant while still being a significant form of verification.

that said, I'm sure that spoofing a fingerprint is easier than I'm imagining and that there's probably plenty of insecurities in BMA..