As a counterpart to its SX10 IS, Canon has announced the SX1 IS, a version with some performance enhancements. While both cameras have DIGIC 4 processors, 20x image-stabilization lenses and a 10-megapixel ceiling resolution, the SX1 uses a CMOS sensor instead of CCD, something which Canon claims will let it shoot at up to 4fps in full resolution. The camera also uses a slightly larger LCD, measu