Is the Wii version still a co-op shooter ala left 4 dead? That trailer didn't reveal much.

Still is. The only confirmed change was for the HD system versions.

I thought the 360 version looked more like an XBLA game than a full retail. I can't see it shifting many copies either way though.

That's because it IS an XBLA title for the X360 and a PSN title for the PS3.  It's a top down downloadable action title for the HD consoles but a FPS full retail title for Wii.

Thanks for clarifying that :) I thought it was full retail, my bad!

You aren't alone, though the Wii version looks and sounds better (in premises, NOT in gameplay!)

It's nice to see HVS giving the Wii-gamer the better option for once!

The Grinder was initially a Wii exclusive but HVS isn't a Wii exlusive developer and they had PS3 and X360 dev kits just collecting dust (in other words, not making any money for them) so they needed to do something that could get into production quickly for an HD console title without breaking the bank since they fund most of their titles themselves.  So they chose to make a top down Guantlet style downloadable title for the HD consoles while still having what they felt was a compelling source material to pull the game story and characters from: The Grinder. 

Ugh.... Halloween 2011 seems so far away!!! ;(

But if something is collecting dust, you're supposed to just leave it there and whine about it in forums and blog comments!

But seriously, that's a smart move, since developing a full game from scratch would likely take up more resources (time, money, manpower, etc.) than they could afford.

if that is the Wii verison, its looking good.