I spotted this at the Teesside Park store in Stockton on Tees. The salesman said they had been reduced this morning - they were £918 yesterday, which is what they cost on the Apple store.
Can't find them on the PC World website, so I can only assume they are delisting them, which the salesman seemed to think might be right as he didn't think they sold many of them.
I've bought one myself, and the Teesside Park store had 3 more remaining in stock. I can't say whether this is a national deal - no doubt someone will confirm/deny this?
UPDATE 9TH JUNE - Confirmed to be the same price in PC World Bath, so potentially looks like it could be national