One of the killer feature of CintaNotes is speed. But Java(.Net and etc.) is slow in comparison with C++ and Win32 API.

This issue is reproducible on my home/work machine. The both machines are online all time and when I come home, Dropbox can't sync cintanotes.db.
1) Yes, it does.
2) Windows 7, CintaNotes 1.3, Dropbox 1.0.10
3) Often. Almost every day.
4) Yes, it does.
5) Yes, it does.
6) Yes. Please look into the following screenshots:
http://dl.dropbox.com/u/1717556/CintaNotes.db.png
http://dl.dropbox.com/u/1717556/CintaNotes.db_handle.png

Simplenote sync will be the "killer feature" of CintaNotes.