The good thing about Annotate is that it has syntax-support for AmigaE from start in your case =) A side note running it on AROS is that the palette is a little bit limited. Maybe a port of "Fullpalette" on AROS would be a great thing to solve this, or that we add RGB-Pen support in Annotate. I've told "Deniil" that I would like to see this in a future version on Annotate and I hope that it won't take too long =)
There is a beta-version of Annotate 3 in a test phase right now (only on OS4 atm.) but it will be available on all Amigasystems when the full release will be done.
This is the first time I got Annotate to compile on AROS btw. :
http://twitpic.com/r003z