Just received an email from Fujifilm:
Thank you for registering your camera for a sensor replacement and also foryour patience in waiting for the sensors to become available. I am veryhappy to announce that we now have these parts in stock and we can upgrade your camera as soon as you are able to do without it for a short while.
You will shortly receive some pre-paid packaging with instructions on howto send your camera to our service centre securely and free of charge.
I just spoke to the UK Service Centre - really nice helpful people. They register your details and will apparently send you a free-post box when the new sensors are ready. The sensor will be upgraded and the camera returned, all free of charge. As a Fuji customer since a c1980 STX-1, I'm happy.
I've owned an X10 for a little over 2 months. It's a beautiful camera that has revitalised my interest and enthusiasm for photography. I'm pleased that Fuji are going to fix the problem, and when the time comes, I will send my camera in to be upgraded. I only hope that Fuji don't throw the baby out with the bathwater...