So far, I'm so glad I found this!  As a developer, the idea of using a standard text program, like so many out there, just wasn't going to cut it!

I played around with Textastic last night and found it extremely intuitive and exactly what I needed (The extra line of keyboard commands was ingenious - try using the standard iPad keyboard for coding (I'm sure you have!)!

I can't comment on the docs, as I have yet to need them :-)