Nick Sharp just posted about this in another thread on here. This was the first I knew. This is also the first time I’ve seen the cover.
EDIT: I just found out that this is not, I repeat, this is not the final cover. This was just a place holder. Whew!
And if you don’t know what it is, here are the sample chapters: http://larrycorreia.wordpress.com/2010/04/07/7-days-of-grimnoir-sample-chapters-from-the-grimnoir-chronicles-hard-magic/