A very interesting accessory from Sony brings the idea of having lenses that could attach to your smartphone wirelessly.
Whilst this is noticeably much thicker than 1020 and all other smartphones, this is due to the optical zoom rather than having a bigger sensor. There’s also no flash. The phone becomes a glorified viewfinder.
Steve Litchfield at AAWP gives the Sony QX-10 a spin against the Nokia Lumia 1020.