Zirana.com published a weekly crime summary of Cupertino, CA for late December which reveals that a prototype Apple laptop was stolen from Apple campus:
Trade Secret Theft/Possession of Stolen Property - Infinite Loop
Between 1/1 and 12/18, unknown suspect(s) took a prototype laptop worth about $100,000 from Apple Computers on Infinite Loop using an unknown method. The suspect(s) sold it to another suspect. Deputies recovered the laptop from the second suspect and he was released pending further investigation.
The laptop is said to be worth about $100,000 but has since been recovered according to the brief report. Zirana is a startup company which provides local news and information for various cities including Cupertino. The source and validity of the report, however, is unclear as the site encourages user generated submissions to the site.