You're not seeing the big picture. Touch ID isn't just another gimmicky feature, it's something Apple spend a lot of money on. They acquired the company that made the technology, and improved it in a way only Apple could.
Today it's a method to unlock your device, but there is no way that this is all Apple wants it to do. The possibilities are endless. Imagine not having to put your password into another website, instead you just touch the home button. Making a purchase on iTunes? Use the scanner instead of the password, etc.
But that's not all. This could easily be used in a retail environment, where a prompt on your screen shows up and says "Buy foobar for $5.99?". Touch ID does the rest.
I see your point, but with this kind of thinking we would have badly designed monochrome tickets forever.
Is it a better design? Yes. Does it account for everything? of course not. Is the technology there? Not quite — but ideas like these could spark something in someone somewhere.
I'm sorry. My initial reaction to that was harsh and childish. I wish you the best of luck with your project, and if I can do anything to help please let me know.
I'm not entirely sold on icon fonts. They look good at large sizes, but as they get smaller they become blurry. I'll stick to creating pixel perfect icons at different sizes.
I closed my Twitter account a few months ago and my thinking and doing has never been clearer. Not to mention, the complete disappearance of anxiety often brought on by social media websites.