The thing I like about this phone and the Google phones are the widgets. I think it would be so incredibly useful to be able to have widgets on the iphone lock screen, before you slide to unlock. Say have contact widgets where you can have 2 or 3 people you call most just be there in one tap. Or the weather widget to see the weather forecast without doing anything.
I think it's possible because of dashboard that OSX has on the Mac. Apple seems to be putting more OSX things on the iPhone, like spotlight, so maybe dashboard on the lock screen is the next step.