The long-awaited replacement to the very popular Panasonic DMC-LX7 is finally here in the form of the DMC-LX10 (or the LX15 in the UK and LX9 in Japan).Panasonic is even go so far as calling the its new fixed lens compact the rebirth of the LX7 on steroids with a 20MP 1-inch sensor. That's a sizable upgrade over the LX7's 10MP 1/1.7-inch sensor, but...