TCL-X100: in stock at WexUK (and pre-order at AmazonUS)
pre-order at AmazonUS
You can pre-order the silver TCL-X100 or the black version at AmazonUS. (Pre-order at BHphoto and Adorama or at DigitalRev ($10 cheaper))
The black one is in stock in UK a at Wexphotographic here.