I posted the below on the Appigo site and they suggested that I post it here. It would be great to get this fixed. Thank you.
I have Appigo's Todo and their Notebook app. My notebook app has many
more folders(category) names than my todo app. I sync thru Toodledo
and to my dismay they only have one list of folder(category) names for
both todo and notebook so on the ipod touch all the notebook folder
names now show up also in my todo application. When I delete the
unwanted names in the todo app, the next time I sync with Toodledo the
notebook folder names are right back in my todo app. I hope they can
be made to create a seperate folder name list for both apps
separately. I don't want (or need) the Notebook folder names also in
my Todo app and visa versa.
Currently Toodledo uses the same list of folders for tasks and notes. In the future we hope to improve upon this.
Appigo could do what we do on the website, which is to hide empty folders. A folder with only tasks does not show up in our Notebook section, and vice-versa. It would be pretty easy for Appigo to mimic this behavior.