A Tracker VSTi called ReVisit.
http://www.nashnet.co.uk/english/revisit/default.asp
I stumbled across this in my travels, and although it might not be of any use to a lot of you, there might be a source of food for thought.
I’d love a VSTi ‘synth’ that incorporated a mini-tracker inside it to create arps and interesting effects. Does anyone know of any? (reckon Renoise will release a player API?)