I've looked at the website and if I were looking at it as an end user...it looks fantastic. Simple, easy and hassle free. Looking at it from a designer/printer stand-point, it is a direct threat to the comany that I work for.
As a designer....you are asking us to provide free work (templates) in order to "expand" our portfilio. (At least...this is what I got from the website). "Great"...Quark gets FREE templates, and I get yet another sample to put in my portfolio. Not to mention, several organizations do not permit "free" work like this to be done by their memebers. (Such as RGD...Registered Graphic Designers of Ontario. It is against their charter.)
As a printer...it would only benefit me if I were to become one of your "prefered" partners. And it is true that you do not directly do the printing, but you (in essence) control who get the print work via "prefered" partners. You also offer the choice to purchase online and have it shipped to the user....thus directly selling to the end user.
From what I can see...you are asking for free templates from designers, selling their work and outsourcing the print work to print vendors that are a part of your "QuarkAlliance output provider program".
As an end user...it is a great idea. As a designer/printer...it is a direct threat.