How about adding something similar to TextEdit’s Edit>Substitutions>Text Replacement to take advantage of Snow Leopard’s text substitution (abbreviation expansion) capability in RTF/RTFD documents?
Thanks for the suggestion, this will be probably added til the final v2.0 release.
Also, I just noticed that text substitution settings are turned off by default with each new document in DT. I was hoping that the setting would instead be global, not on a per-document basis.
In TextEdit, for instance, the setting is global, so every time I create a new document I know that the settings are those I have selected in my previous documents.