Firstly let's get this straight. THIS IS NOT A LUMIX.
The lens is the same and the sensor is the same. The body is very similar although different. The software is streets ahead, and the firmware is different. Most importan tly the FEEL is different (you are a creative photographer right?, That is why you are reading a review for a Leica). If you want to take a few pics of the kids on the beech , and maybe a christmas party. Then the Lumix is for you. It is an excellent camera with great results, and half the price.
But you are reading a review about a Leica. I therefore assume that "Getting it right" is important to you. That extra "Feel" is what you look for. Well,the results are nothing short of stunning. Very sharp, excellent colours. The techy specs are available elsewhere. But Iwill just say that this is a 10 meg camera, 'though you would think it were double. at A4 print and up close on a 40" HDTV. the results are indistinguishable from my EOS 5D MkII (£1500) and EF70-200 f2.8 ISUSM (£2500) lens. Put like that it it very cheap indeed, THIS ROCKS. and it fits in you pocket so it is always there.
You want cheaper then the lumix will deliver 95% of the results, which will be more that enough for most people. You want the best ... That is why you pay for a Leica. If you want the extra 5% , then the extra cost is worth every penny.