I broke down today and bought a refurb ipad mini (MD531LL/AB) for 129.99 on bestbuy.com...it has IOS 9 so it's suppose to work with the DJI app... I'll soon know I guess..
Yup, i ended up returning the mini and buying a new ipad...it installed the go app fine...but i found it to big for my liking so i gave it to my wife and using the Tab 4 now..