It sounds like this topic has been beaten to death; but when you set up a provisioning profile for deployment to test devices, an arbitrarily generated UUID will not suffice, you need the actual UDID to include in the provisioning profile. Sure, you could give users a set of instructions to go through to get the ID, and e-mail it to you - but it is much more customer-friendly and avoiding stupid mistakes to get it yourself in code - previously via uniqueIdentifier
method.
So other than creating an ad-hoc UUID, has anyone come up with a good replacement that would work in iOS6, or has Apple provided some method of doing this? I haven't been able to find it in the docs.