I wonder how will this impact MapD and Dremio's path on the market. It seems to me like RAPIDS is going to include visualisation for free so that would undermine MapD's commercial offering.
In my opinion, I don't see this as undermining the OmniSci commercial offering, but rather opening up GPU accelerated analytics and visualization to a wider audience. A smaller piece of a much larger pie benefits all of the contributors to the RAPIDS project (of which OmniSci is a contributor as well)