And, if Apple would implement TouchID and the TouchID circle/ring, where on earth, on a laptop, would it be logical and easy to use. The only place i can think of is if the trackpad could be able to read a fingerprint.
But the speed and security gains aren't significantly improved. If it misreads my fingerprint once, i could've already logged in by typing
Right now, in my opinion, its too crazy of an idea for a laptop to gain such a feature in the current state of technology. Will it come in the future? Absolutely. How an when? I don't know...