Nikon came gunning for the Canon G11 with the new Coolpix P7000, and now Canon's firing right back with the updated G12. The big news here is the addition of 720p/30 HD video, which patches up one of the biggest omissions from the G11, but just keeps par with Nikon's offering -- a proper 1080p/24 mode here would have made this decision pretty easy. Otherwise things are just welcome iterative improvements: the backside-illuminated HS System 10 megapixel CMOS sensor, 5x lens with teleconve
