DISCLAIMER : this app is not written in Xojo (although the upcoming desktop version will be)
I have created a text/programmer type editor for the iPad (including mini and Pro) that is in some aspects, similar to UltraEdit, or Xcode
it has a custom keyboard, and desktop like menu systems to support the 80+ editing commands, it has word based syntax highlighting, which will be customizable in the future via a desktop utlity app.
if interested, send an email to rdavids3@cox.net
and before you ask… Angel is a 10year old Basset hound that my wife and I have been helping nurse back to health after she was found beaten and starved earlier this year.