Remember the Canon PowerShot D10? The company's first ruggedized underwater cam was a solid snapper, but its bulky submarine-like design made it impractical for most surface-based shoots. The PowerShot D20 offers a drastic improvement over its predecessor in the appearance department, more closely resembling a compact point-and-shoot than a subaqueous vessel. We can't speak to the cam's image quality just yet, but assuming its on-par with the