Took me some time to find the previous version of this pitch, mentioning it here to save time for others who ight want seeing that.
Heh, this added this pitch link to the mentioned older pitch (in the references at the bottom of the header post), but not vice versa. To do the inverse I'd had to post to that older pitch and revive it which I am hesitant to do – probably it's good to close that one. @ben-cohen maybe you could modify your heading post mentioning the older version.
As for the name: I am not big fan of neither "unique" nor the "box" components of it, but I guess it's just a matter of getting used to it.