There’s nothing that really needs changing about Apple’s patented “Slide to Unlock” functionality, but ever since Apple introduced the Smart Cover for the iPad 2, there’s been a conceptual disconnect between how you unlock an iPhone — by sliding — and how you unlock an iPad — by unfolding an origami-like cover off of the display.
It’s not really anything Apple needs to fix, but short of releasing a tiny little iPhone-sized smart cover, I think this “Fold To Unlock” design created by Anton Kudin is just an excellent conceptual bridge between the lockscreen and the smart cover.
Check out the concept in its full, high-res glory below.