Well, a lot of something-pad programs are plain text editors, which are good enough for a lot of quick note-taking tasks, and we don't have one on the 770, so I'd be happy to have that first. Once I've written down my meeting notes or whatever, I shouldn't have to write anything else (XLST or yet another editor :-) to reuse my text anywhere else !
Also, a text editor can also serve to edit a lne or two of Python code on the go, but an XML editor can't.