I'm not sure if the still make it, but both Kodak and Agfa used to produce color aerial film in 70mm. Good stuff too, we used Kodak 70mm film a lot 20 years ago. You're going to have dig around on both company's websites. If they still make it, it will be buried someplace in the special-film section.
Nope. No one is making 70mm double perf color film anymore. You can find it on ebay but it will be expired. And most of the 70mm film on ebay will be non-perf that will not work in an A70.