It's got potential, but I wish it clarified a few more boundaries.
-How long are the adventures going to be?
-Who are these people (have they any experience with adventure writing/publishing in the past)?
-Do they have at least a few weeks ahead already, or are they going to fall into the "oh crap, someone write something quick for this week!" problem.
-How "good" are the adventures going to be? I can assume, based on the publisher (Enworld, Paizo) the author (Pett, Marmell, Vaughn) or the developer (Wolfgang Baur) that an adventure is probably going to be pretty darn good. I don't feel as though this site meets any of those three "confidence elements".
I just don't want 52 "orc with pie" adventures or adventures of "fanfic" quality that I can already find on the web, and I wish they'd sell themselves a bit better to potential customers (such as myself).
EDIT: Remember Dire Kobold.com? They were a collection of dozens of adventures (I came across them because of their Midnight adventure Garden of Good and Evil). I have concerns that this new site will go the way of that one (or, hell, the way of Dungeonaday.com, from Monte Cook himself).
In addition, a print or print on demand version (at the year's end perhaps?) would be a major selling point for me as well.
Just some thoughts...it could be great, and I don't mean to naysay, but I'm left with more questions than answers after reading the OP and their own site. I'll be keeping an eye on this!