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Question: Leica D-Lux 3 as a Back-up

I own a DSLR camera, and as you know, it is a hassle to carry it around when you're not out to take pictures. I need a camera which I can carry around while I have fun with my friends and family. I am looking for a small camera w/ wide angle lens and the manual shooting mode. All Canon and Nikon products seem to fulfill only one need - not both. Is Panasonic version of this camera identical? Is this camera worth buying?