To be breif, a CTF based thing. But it would involve a lot of work. I'll see if it's possible when the API is released. I don't want to have to rewrite most of the game, especially now that Ace of Spades is getting more popular.
I started a new world on my Win7 computer today. I did it just to see how far I could push my graphics card-less rig. I wasn't particularly worried if it was going to be a good world. It turned out to be the best world I've ever spawned.
The mountains are just amazing. I love the 1.8+ world generation.
Oh, and I average 11fps looking out over that in far render distance, with Optifine installed. I'm fairly pleased with that.