g. smithii seems to be a tough one to find- you can either sign up for email notification at Blue Zoo Aquatics, or watch Live Aquaria Diver's Den like a hawk.
I believe that Stomatopod.com is trying to get smithii's in- it is all just a question of identifying after they get them in. From my understanding no WHOLESALER sells identified- unless it is maybe Peacock and that is hit or miss too, if it is a correct ID or not.
They have a platysoma in stock at stomatopod.com
also watch these boards- some people post links for ID, etc- even if they are not interested in buying the mantis themselves.
Julie