Copies started landing on doormats on Friday, with more arriving over the weekend, so slowly but surely the book is getting through.
It is temporarily out of stock at Amazon, but more copies are on their way and more are being collected today for delivery to Amazon later this week.
@ springer and wizard - I can't do anything about the weather unfortunately. Where we are, people are struggling to get essentials delivered like heating oil let alone books. The book isn't officially published until May, 2011, so even with the weather delays, you should have the chance to read it months before it goes on general sale.