The news about the new Sony DSC-T100 and DSC-T20 already broke a week ago. Today Sony officially announces these new thin digital cameras in the Cyber-shot T-Series.

The Sony DSC-T100 is a 8MP camera with 5x optical zoom and a 3 inch screen.
Other features of the DSC-T-100 include HD output, built-in slide show function, face detection with up to eight faces in shot, Super Steady Shot optical image stabilization, up to ISO 3200 light sensitivity and Sony's Bionz processing engine.

The T100 will be available in red (photo), black and silver.

The 8MP DSC-T20 features a Carl Zeiss 3x optical zoom lens and a 2.5-inch LCD screen, and will hit the scene in pink, white, black and silver.

The T100 camera will ship in March for about $400, and the T20 will be available in April for about $330.
More details about the Sony T100 and T20 can be found in this Sony press-release.