I've always wanted a pet slime, but apparently this time none of the more docile ones spawned... crap.
I had three chunks of the cave under my control within five minutes. The only challenge I saw was evading the Creeper waiting for me at the end of the chute. I'm gonna try it again sometime soon, but instead I'll jump into the gravel upon the world's birth. Meaning I'll have nothing but the pixels on my back.
Notch have mercy...
With the new redstone repeaters you can make TNT cannons automatic by putting four repeaters together to obtain a delay for the projectile TNT. (For you slower people, this does not mean FULLY automatic, it just removes the need for two switches.)