I played with the vulcan at the Blade show, and the grind is a sort of hollow grind, and the blade is .16 thick and stays thick pretty far out to the tip. The blade shape and design is really nice. VG-10 steel too so it should cut well.
Handle is standard SOG fare "Zytel" which feels like plastic to me, but its still strong and has full stainless liners and overall feels really sturdy and well made. The grip is nice with the finger grooves and contours as well.
The lock is the standard SOG arc-lock which according to the 2007 SOG catalog "far surpasses conventional lock strength, tested at over 1000 lbs of force measured at the lock in an independent lab test." *this is the only somewhat substantiated claim SOG gives for its arc-lock, which is similar to the way benchmade talks about its axis* Its a very similar mechanism to the axis lock *moreso than the ball-lock* and works on the same principle, the main difference being that the arc lock moves in an arc shape since the lock bar is attached to a pivot above the lock *you can see a silver dot above the lock bar , this is the pivot pin. There is a small bar attached form there to the lock bar.* , but I believe is still sprung by similar omega springs like the axis lock. I played with several with the lock and it felt very solid and quick opening and closing. If I got a SOG I'd want one with this lock. *I've read on here that a few (maybe only one) people have had a problem with the arc lock "exploding" upon first open (not during use), but I don't see how this is possible because as far as I could tell the lock bar/pivot etc was one piece. And I'm sure SOG would rectify the problem even if such a thing did happen.*
Speaking of the opening action, the little kicker that sticks out the back works like a charm and is very handy, and is the perfect size...doesn't get in the way, but isn't stupid tiny like the one on the Kershaw Storm II where you can barely use it.
Overall, I like this knife a lot, and if you want a plain edge, I think this one will be a winner. I believe they are expecting them in stores in late July. Crocblades.com is pre-ordering at $95.00. After the initial wow factor wears off maybe we will be able to snag one at ~$75 street.
Two threads to watch for info on it:
http://www.bladeforums.com/forums/showthread.php?t=472687
http://www.bladeforums.com/forums/showthread.php?t=480740
as always, YMMV
edit: I was typing/researching during the last two posts. New info added to address questions.