Here's an interesting little tidbit. Apparently Apple has just landed large contracts to supply MacBooks to local school districts in Kansas City and southwest Louisiana. What's interesting though is that Apple is apparently customizing these MacBooks to meet various security requirements of the districts. The Kansas City Star notes that each of the computers has a sticker "clearly identifying them as the property of the Kansas City, Kan., public schools... [which] will not come off without virtually destroying the laptop." Furthermore, each computer will apparently have a GPS tracker and even "a remote device to destroy the hard drive" if stolen. One wonders whether Apple might eventually make these sort of security features available to the general public.
Update: Re-reading the article, It's not clear whether the modifications are being doing by Apple or by some third-party after purchase.