I've recently bought a iPod touch 4th gen, and since I cant use a computer during the day, id like to be able to code DM on my iPod, anyone know a good app to code, one that i can port codes to my computer when I am able to do it?

This can be a regular text editor too, it just has to be able to...
A. not mess with the codes
B. be able to have different text files
C. be able to PROPERLY transfer a text file to a windows computer, aka with

mob icon = 'mob.dmi'

Looking like normal instead of

mobicon='mob.dmi'

or

mob icon='mob.dmi'

Optional
A. Supports tab
B. Is able to highlight words
C. Is free
D. Can toggle word fixing, so "nom" does not turn to "non", I bet I could disable this in the setting of my iPod touch, but I am not sure if I can, can someone tell me how?

I don't expect the app to be EXACTLY what I want, I just want some recommendations :P

Thanks
-Shwb1