I'm going to get one also, this is part of a recent e-mail from him.
"my most requested here recently have been for Premium octane fuel performance program, and a Towing Program.
I normally suggest a Regular Octane performance tune and a Premium octane performance tune.
I give free tune updates for 6 months, after that its $60 for 6 more months of updates, or $110 for a years subscription.
I can email you the tune updates, and you can load them from your home PC with a piece of software available for free on SCTs website."