Amazon plans to operate their POD book fulfillment from their plant in Marston Gate close to Milton Keynes. Interestingly, Milton Keynes is also the base of Lightning Source one of the world's largest printers of print-on-demand titles.
It is believed that HarperCollins, Faber & Faber and Cambridge University Press are already some of the publishers to have signed up to Amazon's plans.
The Bookseller news article which features Amazon's announcement can be found at the following link.
Also, here is the Amazon press release.
While large publishing houses in the uk may seem eager and willing, it will be interesting to see how the uk owned and based POD publishers react to this news.