Check this out – a new way to make lenses entirely from fluids. No more precision grinding of glass, instead very malleable lenses can be built from a new technique that utilzes two non-miscible fluids and electric fields to manipulate the lense shape. Fascinating stuff – in theory it will enable a new generation of less expensive digital imaging products because the lense systems will be significantly cheaper to manufacture than traditional ground glass lenses. Plus the system uses much less power than traditional focusing systems in cameras, meaning more battery life for your camera. Unfortunately the article doesn’t touch on how precise the lenses are in comparison to existing ones. My guess is they’re less accurate and thus likely to be showing up in lower-end cameras.