This blog was focused on text editor. It is not a problem, it is preference.
The problem is PIM.
PIM is not just a storage for contacts and calendar.
1. Need item by item sync with "world" (e.g via bluetooth, though doesn't matter how) including (!) MS products
2. Need to be usefull for other application. Email, Meetings, Phone calls (e.g cell phone via Bluetooth), SMS notifications.
3. Need encription for sensitive information (mostly notes)
Not needed all in one product, but combination should work.

Does anybody has solution to it?