Thanks for all your work on this.
A couple of quick notes:
On my machine (SL-5000, OE 2.5.3), the bottom of the screen in the "configure" section is cut off in all the apps--I can see the top few pixels of a check box and some text, but not enough to tell what the option is. The configure screens (and the kopiapplet menu) don't seem to respect the system font choices--or at least making the system font smaller--down to 8pt--doesn't bring the text at the bottom of the config screens high enough to see.
In kapi, the search function doesn't search within notes, as it does on the desktop version.