Well, not exactly new. They've been shipping for a year or so, and PMI has been talking about them for quite a few years before that. They were originally planned to come out under the Joe Meek brand, but PMI decided to sell them under the Studio Projects name instead.
I've got three of them. They work fine, they sound good. They are fairly generic mic pres, but are decidedly better than your typical mixer pre. Don't expect them to stand up to the high end units. But they're in the same ballpark as, say, Sytek or Presonus. Definitely better than their $600 price tag would suggest.
I use them in my live recording rig, where their mix bus comes in very handy for basic monitoring of whatever I'm tracking.