I've been finalizing some little details in the game before release. The title menu now has proper buttons, with a copyright message, and no more FPS display:
I've also made a nice help menu slideshow explaining how the game works. Predator attacking now works pretty nicely, with predators moving along a curved path and a health bar at the top:
Really all that's left is testing and tweaking the game to be a bit more balanced. I've recruited my friend Paul as a beta tester, and the game seems to run properly on his iPhone 3G. Almost there :) .