DF portable – Dwarf Fortress Remote Review
No, this app doesn't play DF on your phone. But yes it does allow you to remotely control it on a server (your regular pc) and play through a better UI on your iDevice. I've used it when 3000 miles from home with no problems. So if this is a use case you'd want, this does it really well.
Review by Antiam on
Dwarf Fortress Remote.