[sync] Sony Ericsson 'database name'?

[David]

I'm trying to sync a Sony Ericsson K610 and it asks for a 'database  
name' for each component (e.g. calendar/tasks).

In order to sync between Sony->Horde->iPod Touch what should I use as  
the database name?  The eventual aim is to have the same calendar in 3  
places.

David