Hard to tell but I'd say very questionable at best. The samples of Bono I saw all had a pronounced "B" - ..... of course, when you're standing up or in a crowd, the signature will vary, but I don't see any resemblance to the examples I looked at. 8) Here's a link to a good example: http://...

No - you just go to any post office and they will give you a little customs form to fill out and attach to the outside - US postage works just fine. As far as returning postage TO the USA from the UK - not sure. Ask the Post Office when you go - they can tell you. Good luck!