I bought a new Sony Cyber-Shot HX20V camera a few weeks ago and and it works according to my expectations in all respects except one, "3D still image" mode.
It is told on page
"Forget carrying around a bulky camera with two lenses. Cyber-shot 3D cameras can now take 3D still images using just one lens. Simply press the button and your camera shoots two images in rapid succession at different focus settings to create a single 3D still image. Share your 3D images on a 3D TV or VAIO® 3D laptop."
I have also a Vaio VPCF21Z1E/BI 3D laptop which thus should be applicable for showing 3D still images taken by HX20V.
Until now I have taken about 30 3D still images in various situations, but only in two of them some weak hints of a 3D effect may be detected. The others look like normal 2D images. I have tested these images also on a Sony 3D TV (by a local Sony dealer) with similar negative results.
3D panorama pictures are shown prettily, but according to my experience the "3D still image" mode is invalid and just takes 3 times more space (1 jpg file and 1 mpo file containing 2 jpg images) than a 2D still image.
I wonder, why Sony has included such a false "3D still image" mode and gives totally misleading information about capabilities of this camera -- or maybe I have missed some important information about settings of the camera when taking "3D still images" and/or when trying to show them in 3D.