Pit zips must be a new addition. The women's mirage shell I have in front of me right now was made in 08, and no zips.
Chris, I can't agree with you that no pit zips = poser outdoor lifestyle. You'd be surprised as to how breathable eVent is. That being said, pitzips are always a benefit, but its always a compromise with weight. I also feel that chest pockets are great. I like them for stashing a trail map, food, or gps during downpours. Beats having to dig through my pack and expose all the other contents to the rain. If anything, I'm starting to feel that hand warmer pockets are useless, even ones that are chest level and above my pack's hipbelt. I can't ever remember a time I've hiked with my hands inside my rain jackets pockets. I don't even think I put my hands in my rain jacket for around-town use either.
I don't think westcomb or any major manufacturer will put on custom pit zips for you, unless you're a sponsored athlete assisting in gear design.