deskthority

Has anyone taken a look at this patch http://www.dawnmist.net/teensy/teensy3_nkro.patch.txt? Is there any advantage of using a Teensy 3.0 over 2.0 for a keyboard?

I don't know about the patch, but Teensy 3.0 is an ARM system, not Atmel AVR. That means that tmk is probably not going to work with it. tmk was written for AVRs only.