I don't think so. Not unless you take it too far. I have heard different point of views on this subject in the last few weeks and here is my findings:
1) If you do not have one, you think it is cheating.
2) My normal keyboard has the same macro functions.
3) When people see it they say "What is that?", so if you can not identify it, then it can't be cheating.
4) You can't cry foul because a select few people found out about this first and you were not one of them.
5) My own wife calls me a cheater. I will buy her a nostromo and see how it goes from there.
So in short...