Liquid Crystal Lenses in phone cameras in '3 to 5 years'?
(All About Windows Phone)

Scope Photonics in Ontario, Canada, have worked out a way to produce liquid crystal lenses, in which each crystal can be oriented to help shape light passing through the lens as a whole. They claim that these flat systems can `mimic a zoom lens system`. Colour me sceptical here, but new technology in this space is always interesting. See the BBC article below for more details. If this becomes a `thing` then phone camera bumps might become a thing of the past.