Right so I got the horribly disappointing email this morning that my black HTC One will not be arriving today but instead on the 2nd April. However, they've given the option of changing to the silver variant and receiving it on the 20th March.
I found out Vodafone has the device in stock as well as O2, so I'm heading to the high street now to see if I can bag one. Again will update here on what happens.
EDIT:
So I've been to two different town centres and checked all the carriers and mobile retailers. Bottom line is nobody is going to have stock until 25th or there about.
Vodafone claims to have had a couple hundred that allowed them to satisfy most of their pre orders. I actually bumped into the HTC rep today at the EE store and got excited that maybe she had brought stock with her. All she was there for was to show the staff a working handset and setup the HTC stand, she too confirmed stock would be coming in late next week possibly but more likely the week after.
There is an even further delay amongst the black variant which leads into the first week of April at the earliest. Hope this helps some folks who haven't received any answers yet. If you do find available stock by some miracle I'd love to know as I'm itching to get one of these bad boys!