I think it's a great presenter of the general idea of visualization in computing but I've not seen many practical applications for it. The biggest thing I wish we could as programmers do is get behind the one idea of actually having computer programs actually negotiate how to communicate with each other in a more hands off approach where APIs like he mentions in the Future of Programming presentation would be possible. Basically, the programs would structure their negotiation in a way that allows each one to 'know' what the other has in terms of functionality which then the calling program would figure out which facilities best fit its request based on some complex set of rules to then fulfill that request (ex. converting a raw image file into a defined format like PNG or JPEG).

Essentially, I want programs to be less dependent on low level constructs much like today we don't depend on pointers or registers (assembly) to do our work these days. The idea that we can't have larger abstractions handled by compilers or runtimes seems silly to me.