So, this took far longer than we wanted it to, but we've started rolling out ITR. It's currently only supported on iPads, and only enabled on the iPad4, but the other models will be enabled shortly. If you have an iPad4, you should be getting an email shortly. This has been a long time coming, and took a substantial amount of work (and an even more substantial amount of testing).
We look forward to your feedback!
We look forward to your feedback!