I think we should check out NetMorph as a possible replacement for Nebraska
http://swikis.ddo.jp/NetMorphIt does automatic detection in the same network segment.
One can group users next to each other.
Send morphs with scripts or with drag and drop.
One thing they have done is that each morph is identified with a UUID in the scriptor so you can remotely control objects. This adds overhead in textual editing of scripts that have to be resolved, since typing in a UUID to reference a morph i a little hefty... Maybe a drag and drop UUID reference could be be made.
Anyway, this document give a good overview
ftp://swikis.ddo.jp/NetMorph/doc/NetMorphC5.pdfKarl