Hi Mark,
What do you mean by "support"? NTNDArrays are certainly N-dimensional. Do you want the API to allow extracting rows/columns, etc.?
Hm.
The problem with leaving n-dim support to the application is that every application using n-dim arrays will have to do its own implementation of the accessors. Also, because of that, these n-dim arrays will likely not be compatible between applications.
Does that sound like I am asking for a new normative type?
Cheers,
~Ralph