Fingerprint sensor off limits to developers says Apple's Schiller
Motorola ATRIX 4G, which turned out to be a huge failure, users don't need to swipe their fingers along a pad on the iPhone 5S. Instead, they merely touch the home button just like they've done for years.
And while Apple might decide in the future to open up the technology to developers, right now it is off limits to them. Apple CEO Tim Cook was talking about other uses for the fingerprint sensor when he said, "You can probably imagine a lot of [other] uses." Whether we can or can't doesn't matter since for right now, the Touch ID sensor code is closed to the public.