If it's a pocketable PowerShot and its name begins with 'G' you can be pretty sure it'll be a good performer, and Canon's latest is no exception. The $499 G12 is the sequential successor to the G11 and, as is typical for the range, it isn't a revolutionary leap forward. The G12 makes use of its predecessor's 10 megapixel sensor situated behind the same 5x zoom lens and offering the same suite of full manual controls. New this year is a 720p24 video recording mode with stereo mics, final
