Verizon today officially launched the Casio Exilim. As the first camera phone from Casio for the provider, the Exilim has a 5.1-megapixel sensor like some rivals but also a real 3X optical zoom that lets it crop the shot without losing detail. Its clamshell display also swivels around to give photographers a large display for previewing the shot while still holding the phone like it was a dedica