Sony has released a new compact camera, the RX 100. Impressions are at the Verge, and dpreview. It looks like a great camera, with a fast lens, fast shot times, and relative good low light performance in a very small and light package. Its sensor is roughly a third of the size of a DX camera like the Nikon D3200, 3 to 5 times larger than typical compacts and 9 times larger than an iPhone. But because the lens has such a large aperture, it should have low light performance at the wide end a bit better than the D3200 with a 1/3.5 kit lens.
The main competition would be the Fujifilm X100, with even better low light performance, but at almost twice the weight. And it will be difficult to decide between the two, between lower weight, extra zoom range, and fast shot speeds on the one hand, and better low light performance / shallower depth of field and the brilliant hybrid viewfinder on the other hand.
It definitely has the ingredients to become a very popular camera.