Digital IXUSImaging-Resource review the new 7 megapixel Canon Digital IXUS 750 / Powershot SD550, it has a 3x optical zoom lens and a 2.5″ screen:

“The Canon SD550 features a 3x, 7.7-23.1mm zoom lens, equivalent to a 37-111mm zoom on a 35mm camera. Aperture is automatically controlled, but the maximum setting ranges from f/2.8 at full wide angle to f/4.9 at full telephoto. A maximum 4x digital zoom option increases the SD550’s zoom capability to 12x, but keep in mind that digital zoom decreases the overall image quality, because it simply crops out and enlarges the center pixels of the CCD’s image. Image details are thus likely to be softer when using digital zoom.”

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