The next version of Kaillera should get rid of the "Waiting for Players" screen after the game is loaded up. It creates unnecessary netsync timeouts. To reduce confusion of whether desyncing will occur due to compatability of new versions of emulators, the config file that comes with the Kaillera server should provide an option whether to accept only MAME32K (certain version) emulators or WinKawaks (certain version), etc.
To add personality to Kaillera, implement a Tournument mode where 16 players can play in one game without the confusion of swapping controls.
That's all I can think of now. I would implement the changes if I knew how to successfully hack into Kaillera.
