Here is a ‘got to have’ security/anti-theft program for any mobile computing device.  The Prey Project is an open-source program so you can always have one of your computer geek friends look it over to make sure nothing nefarious is going on.
The concept is pretty simple.  You place a file somewhere on the web that can be deleted by yourself.  The program is setup to run on a schedule and it simply pings the file.  If the file exists, the program goes back to sleep until the next scheduled execution.  However, if your device goes missing, just go delete that file from the web and watch Prey Project go to work.  When it can’t locate that file, it captures data from the device including a screen capture, webcam snapshot, and network information.  It then forwards all this information to the email you have setup.  A sample of the email is below.

Good news my friend, it seems we found it.

Here's the report from your computer:

 ########################################################
 # geo
 ########################################################

 :: lat=##.#######

 :: lng=-##.#######

 :: accuracy=##.#

 ########################################################
 # network
 ########################################################

 :: public ip=##.###.###.###

 :: internal ip=###

 :: gateway ip=###.###.#.#

 :: mac address=##-##-##-##-##-##

 ########################################################
 # session
 ########################################################

 :: logged user=ZZZZ

 :: uptime=\ZZZZ-PC has been up for: 0 day(s), 16 hour(s), 53 minute(s), 22 second(s)

Happy hunting!

--
 Your humble servant, Prey
 http://preyproject.com 

An image named prey-screenshot.jpg is attached to this message. A thumbnail is below.

An image named prey-picture.jpg is attached to this message. A thumbnail is below.

It was pretty impressive to punch in the latitude/longitude coordinates into Google Map and it pulled up a streetview photo of my house.  I tested by driving to a local hotspot and the coordinates pulled up a streetview of the CareNow facility I was sitting in front of.  Kind of spooky, but almost makes me want my laptop to get stolen, just so I can catch the perp… :o)
Source: Prey Project