QNX would be 'ported' to PA no matter what. Both products are aimed into the same market (heavyweight 'embedded') and PA is essentially just another PowerPC.
I have no speculation on what AInc. is or isn't up to, just want to point out that that fact doesn't carry much causality.
[Also, no insult to QNX meant by 'heavyweight.' From observing that scene it's clear that some embedded engineers think using a kernel is 'heavyweight.']