What is Sony's idea behind the W and T-series cameras?

Question

Do the lower W and S numbers represent earlier models / resolution?' As I don't get the logic behind Sony's numbering, I was wondering if there is available a so called "family tree" that shows the relaionship between the vaious models (like DCRP's tree for the Canon Elph series http://www.dcresource.com/reviews/canon/powershot_sd790-review/ )

((Just as a matter of interest I recently saw some truly excellent shots straight from the camera, taken on a bike ride using am old battered shirtpocket Sony L1..))

Regards

Answer 1

Sony's naming format is a bit "all over the place." A series can denote a common design trait (ex. the slim T-series with a sliding lens cover) or a certain characteristic (ex. zoom of the H-series).

Take a look at the Cyber-shot Wikipedia entry for a brief and incomplete round-up:

http://en.wikipedia.org/wiki/Cyber-shot