I smashed my K3 screen about 3 weeks ago. Called Amazon UK guessing I had nothing to lose (worst case they'd say "you broke it you idiot" and I'd lose the price of the call) - they offered sympathy and a discount from a current unit... no need to return the broken device.
By pure serendipity I spotted the replacement screen (part number is ED060SC7) for sale online and a Youtube guide to dismantling the Kindle... if you're that way inclined you can do the repair for around $40/£25 delivered. It's not a process for the faint-hearted or ham-fisted - the entire screen assembly (including the glass rear substrate) is 1.14mm thick (45 thou) - it's a miracle more don't end up smashed.
Last edited by hunnymonster; 01-30-2013 at 08:42 AM.