This is their toe-dip in the minimalist fray. It seems designed to compete with the MT100/101, (as the comments on iRunFar indicate), which is a fine starting point.
It also looks like it would be a fine candidate for zeroing, as are the Mountain Masochists.
Hopefully they'll come out with something even more minimalist after the Merrells hit the market, as Montrails have always fit my feet exceedingly well.
Here's Montrail's post on these shoes.