A colleague has just returned from the US and brought with him my 20mm Pancake lens order from B+H. It's every bit as good as I'd read and hoped. I'm sure it's going to be the default lens on my GF1. I'm off to Mobile World Congress in Barcelona in a couple of weeks and the combination of its slim form factor and wide aperture will be ideal for product shots in the halls. Also bought am Op/Tech sling to carry it on.