- add API to clone sd_bus_message objects
- SD_BUS_COMMENT() macro for inclusion in vtables, syntax inspired by gdbus
- kdbus: matches against source or destination pids for an "strace -p"-like feel. Problem: The PID info needs to be available in userspace too...
+ - kdbus: we need a way to figure out whether there's currently an activator for a name that is already activated
- longer term:
* priority queues
* priority inheritance