This is true, but are we talking about the same thing? My lock code is not an encryption key for the content of my phone, it is just a lock on the front door to prevent curious people and thieves from easily looking in my phone without my consent, and not typing any code reduces the risk that they will guess it from the smudge on the screen (< 10-year old children can do it, and they actually do it). For highly sensitive data, I wouldn't trust a simple front door that is convenient to open, I would go for fully encrypted data with a complex key that is a lot less convenient to use reapeatedly. Now do I want a 10-word pass phrase to unlock my phone tens of times a day?

I mean, the guy in the video below is literally crafting a fingerprint in his garage, but I doubt many pickpockets do that on their spare time. Sure they might, but I mitigate risks with a mechanism that I think has an adequate costs/benefits ratio making the task not too bothersome, while keeping most thieves out. The video is a firm demonstration that a fingerprint security can be worked around, but no one claimed the opposite, and a geometric pattern visible from the smudge on the screen is neither safer nor quicker to unlock.

https://vimeo.com/75324765

After a few messages, I understand now that the majority disagrees, but I'm happy that there will be a fingerprint sensor on the Livermorium and I still hope I'll be able to run Sailfish on it and unlock it that way. :<