I came across this video about fusion from a National Instruments talk. They talk about using labview to control the plasma in a tokamak. I think it is about a year old.
I know that Tri-alpha is using LabView as well. I know this because I applied for a PLC control system engineer job with them and they told me they had already hired someone. They also told me they wanted to hire someone who did LabView programming and instrumentation. This was in early '11.