[xwintermutex]

If you have a few pins that you suspect to be JTAG, but don't know which is which, there are tools for that too [1], (instead of manually trying).

[1]: http://hackaday.com/2013/10/02/jtagulator-finds-debug-interf...

[teh_klev]

This is mentioned in slide 51 (with picture of said device in all its lurid pinkness):

https://docs.google.com/presentation/d/13p6O0C3aY-LSeqGAjfEg...

[amckenna]

+1 for the Jtagulator. It is an awesome tool