Cortex multiple users

so i have done a little searching and i cant seem to find an answer,

i am planning on splitting a superchips cortex programmer with a friend of mine who has an 06 xterra 4.0L

i was wondering if we will face any problems like if the programmer needs to be plugged in to work, or if the programmer imprints itself to a vehicle, or if there is a difference between the two vehicles even though superchips says the same model works for both vehicles since they have the same engine.

i assume i will encounter no problems but would like other peoples opinion or if anyone has any first hand experience with this. i haven't emailed superchips themselves because the way i figure it they have a vested interest to tell me that i need to buy 2

thanks for the help