In Mac OS X Lion you can now add a short message to the login screen. It’s a long shot but adding contact details might increase the chances of a lost machine being recovered by 0.5%.
To update the message go to System Preferences > Security & Privacy > General where you can choose Show a message when the screen is locked.
Don’t forgot to use your own number, although I am happy for any lost laptops to be sent to me.
Do you have any statistics to back up your 0.5% increase claim?
@fry yes. Here’s the full statistics breakdown:
Chance of no-return without contact info: 100%
Chance of no-return with contact info: 99.5%