I've been reading up on the many Nether plugins available for bukkit, and I'm wondering if anyone knows if any of them have multiworld support; ie, multiples nethers, unique to each world on the server. Alternately, mapping a single nether to one world (not necessarily the default world) and disabling them in all others. Anyone know if any of the current Nether plugins is capable of doing this? If not, is it even possible?
Yep, MultiVerse. Just add a separate nether type world for each normal world, then create portals to link them.