I think this is terriffic! I do HPC work with CUDA and I think it would be great to have alternatives.
However, we still await the decision on the dispute between Google and Oracle over copyright of APIs. If Oracle wins then Nvidia could possibly put a stop to this. I hope Google wins - APIs should not be copyrighted in my opinion, but their implementations should be.
but if this is judged as illegal, all kinds of nasty effects will occur.
For exemple : what prevent oracle from changing the licence of Java and ask for royalties for all java based apps after a certain date or something ?
or microsoft from asking royalties for apps using DX ?
i know they can't change an active licence, but they can change the licence starting a certain date, and applying it to all apps created after this date.
And even if they swear they won't, legally it wouldn't be mandatory to do so.