Sync N900 <-> N9 via Bluetooth
 

Hi,
I am fairly new to the game.

I recently bought a N9 64gig.
I wanted a MP3 Player with a decent capacity and also a device that has offline maps. Also my Palm Zire is aging fast so I needed a replacement for that.
When playing around I realized that the N900 is the more open platform with bigger community support.

So I got a N900 too.

Here comes my question:
How can I sync the calenders of both devices so that all entries get synced?
There is the option to use the N900 calender, the N9 one or to create a new one.
If I have an entry that is marked 'N900' in the N900 it gets synced and is called 'N900' in the N9.
But if I mark the entry lets say 'privat' it does not get synced.
The same goes for some costum entries in the N9 calender.

Are the calenders not compatible?
How do I get it working?

Thx.