Actually, I hit this problem when I used ssh from my android phone to log in into a linux server, and I tried to use vim to edit some files.It was a little bit... displeasing, although I could do everything which I could do from a normal desktop/keyboard.Extension: There was a question, why it was displeasing if I could do anything I wanted. For example, typing 5j45| on an emulated keyboard on a touchscreen has a much lower information rate (between your brain and your device) as touching the intended character position on a touchscreen.
Does any solution exist to use vim from touch screen?
input devices
Does enabling mouse helps? This way you should be able at least do selections via touch. Maybe navigate files and buffers/tabs. Depends on plugins I guess.set mouse=a