I hope they hurry up and say what they are going to offer.
Most websites seem to think the phone will cost the same as on O2 but the packages will be a bit less.
They are not expected to let people have them on the existing packages, new ones will be created.
Know one really knows yet.
I am with O2 at the moment but still have a contract with Orange as I get free internet with them, so if it works out cheaper I will get the phone on Orange and ditch O2.