The demo also has a unique feature, allowing players to earn in-game experience points by sharing the demo with friends. Using the "console messaging system" to share the demo, players will earn XP for each friend that downloads it. This XP can then be used to upgrade golfer stats in the retail version of the game that launches next month. Just make sure you buy the game new if you want to make the most of that XP online.
Xbox.com: Add Tiger Woods PGA Tour 11 demo to your Xbox 360 download queue