(Note that there’s still a backorder message on the page at them moment, but that should be removed as soon as the inventory in their system is updated.)
The new Pentax MX-1 serious compact camera with a retro flare is in stock and now shipping. The MX-1 sports a 12MP sensor, 4x zoom lens, 1080p HD video and has a fast f/1.8-2.5 lens. Focus and shutter response are very fast for a point and shoot camera. I had a very positive first look at the MX-1 at CES 2013.
It also appears to be in stock in the Sony mount option here at Adorama. Note that the Sony version does not include Optical Stabilization due to the built-in stabilization in Sony Alpha cameras; however, Sigma still prices the Sony mount version at the same price of the other OS versions.