I've been shooting the X100 and so far I am very pleased with the production model performance. The only issue we will all be waiting on is the RAW conversion in Aperture, Photoshop and other programs. Right now I have to work with Silkypix and the software included with the camera. Not ideal but it works well - just not my current workflow. So for now I'm shooting RAW+JPEG.
I just found out that the X100 will ship in the USA in about 4 weeks. So the end of April they will hit the stores. I know there is a great anticipation and I'm looking forward to the USA launch. If you have any requests please sign in and post them and I'll do my best to answer them.
The below images are done at ISO 320 - 2500 & 1600 - in that order.