Here's some background on why I started working on multiple worlds, despite nobody asking for it:
The reason why I tried to get the multiple worlds to work is because of a few people wanting Equivalent Exchange. EE has proven to be overpowered, and so many Tekkit server admins disable it or parts of it. With multiple worlds, it is possible to have a non-EE world, and a full Tekkit world, completely separated. The other alternatives would be to not have EE at all, add EE to the server, or have two separate servers (which isn't reasonable as it will double the stress on my PC and separate the players).
EE is considered overpowered because you can set up factories spitting out diamonds and every few seconds. It's crazier for iron, of course. On its own, EE isn't too overpowered, but it's the fact that it's combined with other mods.
So my work for multiple worlds is to give people the option of using EE, rather than just wanting to add more worlds. It's just that multiple worlds gives us other options, as well.
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multiple updates tomorrow or i will publicly admit that zachnorn is better than me -Sess/MRNICEWATCH
Posted 3/5/12, no more updates since...