Build a Babiato Members only tool

Hi all.
I've been searching for different tools to add to a project i'm working on.

I ran across this article
and thought to myself - Why not see if someone on Babiato could build this, then make it ONLY available free for Babiato members = and place on sale for non Babaiato members?
I think it would be a really nice tool, and could be a decent way for Babiato to earn ~