What's the beef between IBM & Palantir?
It's entirely possible that there are other things going on between Palantir and IBM, but I'm not aware of any other specific squabbles.
Disclosure: I worked at Palantir from mid 2009 to early 2014 and still own some stock.
The employees on Palantir's side who were involved also kept their jobs. That sends a really powerful message about who they are.
http://www.bloomberg.com/news/articles/2016-10-28/inside-pal...
http://www.defensenews.com/articles/judge-rules-in-favor-of-...