i don't see it
I don't see anything in the article that says they are abandoning anything. HP seemed very committed to supporting Openstack in Helion private clouds, the public cloud was always a question.
Obviously there are tons of largish companies out there working on deploying Openstack internally. I think it makes the most sense for the biggest players, companies that have server counts in the thousands for example.
What I do see in the article is OpenStack touting one successful use case for their platform.
I've never used OpenStack myself, looks interesting, but more complicated than I care to deal with myself. (I use vmware instead, and am not using any of their fancy vCloud stuff, just the basics ESXi enterprise plus with vcenter).