Question: Can these Products receive OSC-TCP?
Puredata
Yes, bud dumpOSC does not work, you have to use netreceive and the external OSC / unpackOSC
http://en.flossmanuals.net/pure-data/ch065_osc/
http://puredata.info/community/projects/software/osc
Reaktor
Reaktor 5.1 seems not to accept tcp connections.
Supercollider
Accepts tcp by option: start with: scsynth -t <tcp-port> -u <udp-port>
MAX/MSP (5.1.8)
Yes, via net.tcp.recv und OSC-route.
http://maxobjects.com/?v=objects&id_objet=2
http://maxobjects.com/?v=objects&id_objet=2863
Processing
Yes, via oscP5:
http://www.sojamo.de/libraries/oscP5/
http://www.sojamo.de/libraries/oscP5/examples/oscP5tcp/oscP5tcp.pde