Well, if you have read the reviews at Dpreview, there is not too much left to be said. Apart from some real world experience, that is.
In the last couple of years, I have tried several "serious" compact digicams, and this is my experience:
1. GRD: nice camera, yes there is noise, but there is also a lot of detail. Many cameras, like the Fuji (and the new Panasonics) combat noise by destroying detail too. Ricoh chose not to do that, so the images are quite processing-friendly. In the end, the long RAW writing time was just too annoying;
2. G7: this camera is "almost it", but the lack of RAW ended up killing it for me. This is a serious camera, for serious users, so it should have RAW. Mind you, it still produces very nice JPGs; what I feel is that the camera entices you to push the envelope, being so well put together, but when you do so, the results are disapointing. So I found myself using this camera for less serious applications than if it had RAW. Mixed feelings...
I have now bought the Panasonic FZ50. It is a different class of camera (bridge camera? DSLR shape and size, but still digicam?), but it isprobably the closest you can find to what a Canon Pro2 would be. It has a top quality Leica zoom lens, RAW, manual zoom and focus rings on the lens, nice EVF. It is a hard to beat package. The downside? To combat noise, Panasonic have decided to smear away the detail. Thankfully, you can shoot in RAW, and combat the noise as you wish.
The new Panasonic FZ8 is a downsized version of the FZ50 (also has RAW), so perhaps you can look at that one too.
There is also the just announced Ricoh GX-100, so the options are becoming more interesting, especially away from Canon and Nikon, who seem to be asleep...