UK iPhone no longer available

Ahead of next month’s all but confirmed 3g iPhone launch, stocks of the current version have now run out in the UK. O2’s web site is showing the image above even though there has been no official announcement of when the replacement will arrive. Speaking of which, there are more images online today claiming to show the next generation. Engadget has them so take a look and make your own mind up. With a (rumoured) month to go until the launch, do Apple have to spend any money on advertising this device?