I've had it for a few days now.
Excellent build quality and fast focussing - faster than the D300 with non-USM lens and nearly as fast as the motorised ones!

I started to panic that I'd wasted my money on the D300 - but I haven't.

The GF1 doesn't meter so well [even using the intelligent multi-area mode] and the equivalent to d-lighting isn't as good. More problems with burned out highlights than D300. Fewer focus points of course, but the AF tracking doesn't impress me at all [? not got settings correct, or just not very good]

The LCD screen is really bad - like another panny compact I own, it's very highly reflective and if the sun is shining on you face, that's all you can see, reflected in the screen! I'm desperately awaiting the electronic viewfinder! In the meantime I wondered about an IRA-style balaclava to reduce reflection, but I suspect that might attract unwanted police attention!

The 20mm pancake lens is brilliant - sharp, fast focussing and light. Tele zoom and wide zoom lenses seem OK at first look. Awaiting the standard zoom alternative kit lens.

Overall, an excellent camera as a light second fiddle, for when the Nikon is too heavy to lug around all day [I felt the strain during the Open House London weekend] and when I don't want to use ALL my cabin baggage allowance on camera stuff!

The fact that it compares so well to the D300 despite the above shortcomings [especially in respect of focussing speed] speaks highly of it, given the disparity in camera type.

British museum shots:

Courtyard, 20mm pancake lens

http://www.flickr.com/photos/saywell/4001703288/

http://www.flickr.com/photos/saywell/4000950353/

Detail from statue

http://www.flickr.com/photos/saywell/4001709880/

William