Offensive Security replaced Backtrack with Kali and have posted some videos and documentation to the Kali Dojo here:  http://docs.kali.org/category/kali-dojo

Chromixium is the Chromebook-like distro that you are looking for.
http://chromixium.org/

Thanks Adam~

here is the Raspberry Pi encryption that you are looking for.  ;)

I just loaded that in a VM to check it out, its got a nice GUI
http://www.osboxes.org/ is nice site to get Virtualbox and VMware images for popular Linux distro’s  

My Acer Netbook was originally XP.  Upgraded to Win 7.  I set up a separate partition and installed UBUNTU for dual-boot.  Make sure that you use the 32 bit version unless you have a dual-core cpu.
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For an older netbook try Lubuntu http://lubuntu.net/ or Android x-86 http://www.android-x86.org/

http://www.jide.com/en/remixos-for-pc#downloadNow     you can try Remix OS    its Android for PCs

(The above received from multiple participants.)
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https://www.playonlinux.com/en/

For those of you who just can't live without certain Windows programs...

Check out the compatabilty list. Wine is FREE, and for Codeweavers sign up for a FREE trial!