Unable to access the cursor pad on the iPad mini. Nor am I able to edit the last several lines of code after the keyboard is displayed on top of them.
Have a look at this entry in the manual: http://www.textasticapp.com/v4/manual/lessons/How_can_I_bring_up_the_cursor_navigation_wheel.html
You should be able to scroll to the last several lines with your finger.
I do know how to access the cursor pad, and it works fine for me on the iPad, but not so much on the iPad Mini. It occurred to me that it may be behind the keyboard, related to the text editing issue.
Yes I can scroll to the last several lines, but they snap back behind the keyboard.
The 'files' pop-up also extends below the top of the keyboard (unlike the expected behaviour I see on the iPad) requiring me to close the keyboard to access the file tools.
This does appear to be only an iPad Mini issue.
Just a shot in the dark: did you jailbreak your iPad? Maybe it's a jb tweak that causes problems.
Customer support service by UserEcho