Frank, it is not just you. Geany is a GTK application, and this is just a straight compile for Maemo. The interface does not respect hildon input methods, which means it will not use popup keyboard or the "Chr" key on the N810. There needs to be some hildonization in order to improve functionality.

I compiled a version with basic hildon elements (proper menu and toolbar) but it screwed up my scratchbox install when I removed it. I might give it another go if no progress is made soon.