It's been 30 years since we saw Deckard track down replicants by having a machine "enhance" pictures, and yet we're still stuck with distant-looking photos when we want more detail than our smartphone cameras can manage. While we'd argue that a few phones already live in that Blade Runner future, Google has just obtained a patent that could give the rest of us a helping hand. If the zoom isn't up to snuff, the proposed software could gauge a mobile device's positi