I spoke with O2 yesterday - the bold is showing as in stock on their system, but has no product code associated to it, or stock numbers.
I'm a business user, so the guy is supposed to be ringing me on Monday as the only time he see's this kind of thing is when the stock is being uploaded to the system.
He also thinks it will be available soon, as it is not on his 'forthcoming phone release list' either.
Fingers crossed