Currently I have one map setup and running with 1.2 the world is not progressed to hardmode yet but is right "at that point" where the wall of flesh could be pushed.

This world is running on a spare ubuntu box I had sitting around. I am using tShock and exploring some options with the mono framework at this time. The world should be pretty stable but there are some rare chances I could drop it by mistake. :)

I'm looking right now on eBay at some hardware to setup a second server that could be dedicated to Terraria worlds and will post some updates then.

I'm also looking into setting up some smaller pvp worlds for deathmatch type games. These would also use some of the tShock plugins to enhance the experience. more on that later.

I will be starting a forum within the group that will list server details and information.