Tall Chair has released a trailer for their upcoming 3D (yes, 3D!) tower defense game: Cowboys vs. Zombies. Now, not much information has been released, however, we do know that Cowboys vs. Zombies has been submitted to Apple for approval and should be released shortly. No information has been released if Cowboys vs. Zombies will have a iPhone 4 optimized option along with its features. This trailer that has been released shows off some gameplay footage to give you an idea of what the game will look like. Here’s the trailer:

Like I said earlier, Cowboys vs. Zombies has been submitted to Apple for approval and PocketFullOfApps will let you know when Cowboys vs. Zombies is released.