QA seems to be creeping up in my world all the time these days. After I create my IAs and hand them off, I still sign with relief. But I have no idea why to be honest. I feel like I spend just as much of my time QAing the development work as I did creating the wireframes. There was an interesting post on the IxDA site the other day on this very topic. Read it here.
There are definietly very positive points to UX professionals being involved in this stage of the process and with the good of course comes the bad. If you have a sec feel free to voice your experiences.