The tablets start with vi. You can install vim, but it's not needed or helpful for this.

However, if the goal is just to paste text into files, cat is even easier:

• Code:

  cat >targetfile

• Paste stuff into xterm.
• Tap Ctrl.
• Enter 'd' in the editbox and click OK. (Or just tap d on the keyboard, if you're using any xterm build other than stock Chinook...)

Or, if control chars are considered a problem, use a here file:

• Code:

  cat <<E.O.F >targetfile

• Paste stuff into xterm.
• Type E.O.F<enter> on the last line, by itself.