Thanks for the replies. Here's my follow-up. First, I returned to the point of purchase. They examined the knife and opined that the blade play was okay, even necessary for easy opening. They offered to exchange, grabbed another Kiwi off the shelf, and yep, it had the same blade play. (No, I didn't ask to see them all, I appreciated the gesture). I also emailed Spyderco and received a quick reply: " . . .Blade play in the closed position is not a problem, I just checked another Kiwi and I too can move the blade side to side, I am actually moving it. It is nothing to be concerned about blade [play] is only a concern when the knife is open . . . ".
Well, okay, none of my other knives exhibit similar play, and yes, it bugs my obsessive side, but on the other hand, I'm told it's okay by a vendor I trust and a Company I'm told I can trust. So I'm gonna live with it and see what happens. I do want to add that aside from this issue, the Kiwi is one sweet knife.