Additionally, while the specific context matters, I believe phases "version of Teensy" or "variant of Teensy" for products not from PJRC are extremely problematic.
I've been reluctant to write on this thread, because it really is about drama between Adafruit and SparkFun, or perhaps between Phil/Adafruit and a number people may or may not actually be connected to SparkFun. I have some strong feelings...