In short, a lot! The full version of Mah Jong Parlour features:

Higher levels of difficulty and play
		- Novice (easiest; included in this demo)
		- Experienced (medium level; faster play, more difficult)
		- Expert (advanced computer intelligence and gameplay)
	
Networked play against friends (and enemies)
		- supports 2-4 players over a network locally or remote 
       over the Internet!
		- MJP automatically assigns computer players to the missing
       human players! 
    - Network Chat allows you to send message to players.

More art work and animations

More language files

Accumulation and display of statistics

Saving games 

Saving preferences for multiple players