Fuji X-Pro1 full-size JPEG samples in DC Watch review
Japanese website DC Watch Impress has published their Fuji X-Pro1 review (computer-translated), which includes full-size JPEG samples taken with the camera. Their samples include a film simulation set, a dynamic range bracket set, ISO range and noise reduction range sets, and they conclude with real-world sample pictures. It looks like almost everything was shot with the 35mm f1.4 XF lens.
In terms of availability, the X-Pro1 and its three lenses are available for pre-order. The only retailer to provide an estimate at the moment is B&H Photo, showing a March 28 estimate. Please note estimates are only estimates, and they change over time as estimates depend on supply and demand (pre-orders/orders).