I think that the use of LabVIEW for linux is platform independent as far as hardware. I believe that as long as you are running a compatible GUI (I believe XWindows and KPT??? are two that are recommended - check ni.com/linux for more information. So, for your purposes, as long as you can install the proper GUI, and then LabVIEW for Linux, you can then run, code, compile, and deploy applications on the AIX 5.1.
I am personally VERY interested in knowing about your success (or failure, should that unlikelyhood occur) on Linux. If you browse the topics, there is actually one on non-windows useage of LabVIEW. I am currently setting up my first Linux machine at my home office, and am very curious to know how other people do with this 'adventure into unc
harted territory'. The only documented useage I have seen is in Gary Johnson's newest edition of Power Programming.
Good luck, and please keep us posted. I sense that I am the only LabVIEW for Linux fan besides yourself. But please feel free to post to this thread, and to the topic.