Amazon has just announced the launch of its UK Kindle Store, furnishing UK netizens with a localized storefront from which to browse and purchase their ebooks. It starts its digital life with an impressive 400,000-book collection, and is claimed by Amazon to offer the lowest prices of "any e-bookstore in the UK." Guess that gives price comparison sites a new avenue to branch out into. More than 170 magazines and newspapers are also available, for one-off purchases or on a subscription basis, while the new lighter, better, cheaper Kindle is up for pre-order and set to ship at the end of