To get a free UK O2 Version Apple iPhone on its release day free of charge, simply follow these steps:
(1) Signup for free at www.nanos4free.co.uk.
(2) Complete one offer (Don't worry there are free trial ones to complete such as Lovefilm which won't cost you a penny if you don't continue them).
(3) Refer some friends to signup and complete a free offer. Simple as that!
You are guarenteed to get your iPhone free of charge in the UK with no delivery or any other hidden charges. The company makes money because you sign up through them to an offer which they get paid for but since you can do free trial offers, you don't have to pay a penny.