Cisco ACI and VMware NSX kumbaya?

Comments by Cisco CEO Chuck Robbins last week that the networking giant is open to collaborations with VMware in virtual networking raise the question: Just how would Cisco's ACI and VMware's NSX platforms could work together?
In an interview with CRN last week, Robbins spoke vaguely about potentially exploring collaborations between Cisco’s ACI and VMware’s NSX, but did not commit to any specific integrations of the two products, which have typically been seen as competitors in the