Image sensors keep getting more and more pixels shoved onto their tiny surfaces, but still VGA video capture just won't die. The latest to extend its legacy is the Pentax Optio M90, a 12.1 megapixel compact that gathers light through a 5x (28-140mm equivalent) lens up front and records to SD/SDHC cards. It naturally sports all the fancy smile- and blink-detection modes you'd expect in a little shooter, plus a so-called Copy mode, which pledges to somehow make it act like a hand-held scanner. We're intrigued