This looks like a port of the process explorer from the Sysinternals suite of tools that people like under windows. I think I also saw something similar to this from Dave Plummer ex Microsoft Dev. at tmog.org.
Well, if you look at the commit history, the first ones are authored by Mark Russinovich himself.
Seems like a safe bet that's what it is since "Sysinternals Process Explorer for Mac" is the opening title of the README :D.
Certain things like Sysinternals tools outside of their native platforms is somethnig I hope to see more of. E.g. I had a SumatraPDF and 7z GUI clone on Linux for a while just because I liked it more than the Linux PDF readers (now I have a home grown app which handles more formats). It looks like this one could use a bit more time in the oven though.