IEEE Spectrum: Singapore-based DynaOptics "says its technology will allow mobile device manufacturers to offer cameras with optical zoom without making the phone thicker or requiring the zoom lens to protrude. The company says its secret is its lenses: they are asymmetrical, so a sideways movement can change the perspective from near to far." DynaOptics has raised $2M to date, and is looking for more. The company expects to have engineering samples available for mobile device makers in Q1 2015, and will be ready to start mass production by late 2015.
Update: MIT Technology Review too publishes an article on DynaOptics.