A couple of reasons for interest in the Sony is the use of Minolta lens, as well as it is rated the best stability/vibration control in that price range. I have an unsteady hand, so you can see where this would be very helpful.
I found this passage regarding the DT lens technology:
The DT lenses will also offer a degree of flexibility in both bright and low light conditions. The iris within the various lenses is made to form a smooth round aperture that creates defocused compositions. According to Konica Minolta, the circular aperture will smooth out gradations and create a more naturalistic reproduction of the scene, particularly in direct light. In compromised lighting, when flash assistance is necessary, the lenses contain a “distance encoder” that uses an ADI (Advanced Distance Integration) system to interpret the subject’s distance and set the flash illumination level and exposure values appropriately, when using either the in-camera flash or an external unit.