Look at this thread:
http://www.yorkietalk.com/forums/sho...ghlight=London
Someone here on YT has put a deposit down for a chocolate yorkie and she is pretty sure she won't be able to get her anymore and if she can't get her, she wants her to go to a YTer. Send a Private Message to mizzwanned and ask her for an update and tell her you are interested in getting her, if you are.
BEST OF LUCK finding the perfect furbaby! Please keep us updated on your search.