I wouldn't get excited. I have the GX-100 and, although the images are fine and the digital interface is great, it is not what I was expecting. There is, as always, NOTHING that even remotely comes close to what I am used to with my Leica M6, or even an old Yashica rangefinder. Somehow I tried to get the GX-100 to be like one of these cameras, and I only get disappointed. It is too light and electronic, the lens is too slow (so forget about low-light without flash), there is no latitude (so highlights are always blown out), the lens has no way to mount a filter on it so you need a stupid ring-adapter, etc., etc., etc.
Why is it that it always seems like "One step forward, ten steps backwards"?