"I suggest you leave the build in a private download page with the app and the provision file. Some people have complained of the file getting corrupted and downloaded incorrectly when sent over email. It ensures all testers and reviewers can get the latest updated version, since the old ad hoc distributions won't work.
If you have found people to test the app/game, send them a promocode ASAP so they can add the review in itunes. This is crucial for reviewers that don't like begging for codes."