Using the code from Cody Brocious to open Onity door locks, I was able to get a complete circuit inside of a dry erase marker pen and open my test lock. Check http://www.youtube.com/watch?v=n1JEQ6ZsX0Y for longer more detailed version!Check out http://blog.spiderlabs.com/2012/10/pentesting-hotels-with-pens.html for more details!Also be sure to follow me at http://twitter.com/jaku