Hi Invisiblehand, I don't know about either the mini or that particular front rack, but for what it's worth my Dahon rear rack didn't fit on my downtube (one or the other uses non-standard dimensions).
Are you considering the lighter Capreo version? If so, I want a review!
Also, dcoli mentioned that the mini rolls well when folded. My NS would, too, if there were a way to hold it together properly. I'm not sure how the little guy is held together.