I've just had a look at a V1 at my local camera shop and I'm pretty impressed with what I saw - I thought the LCD was very clear & detailed as well as the colour EVF as well.
I use a D700 with a 28mm prime lens as my "main" camera but the V1 with 10mm pancake would make a nice "second" camera for times when I don't feel like carrying the D700.
Also it uses the "NEF" file format so it will work fine with my existing ViewNX2/CaptureNX2 workflow.
I'd be interested in knowing how well Program AE mode works as I have tried this mode on a friend's Lumix GF2 and it fails to adjust the aperture properly (ie the mode is "broken").
Finally I'd want to be able to manually set the focus distance (eg 1m/2.5m/5m etc) and would be interested if the V1 allows this as I have never much liked using auto focus.