When I paid for a year of Creative Cloud, I was under the impression that all the programs and apps listed were included. However, when I tried to put PhotoShop Touch on my iPad, I was sent to the Apple Store to pay $9.99. Is this not included in what you get for the subscription? It should be a bit more clearly spelled out. The download page does not specify exactly what one is entitled to download with the subscription and what is extra. I feel as though this is a bit misleading.
You can't really rent a license to use PS Touch as it's in its own closed electronic marketplace (owned by Apple in this case). Google is the same way with Google Play. There's no easy way to provide you with a copy of PS Touch off the bat. Maybe a rebate program would be the best way to do it.
Still, $10 gets you any and all updates. It's yours if you buy it.