Hi Nick,
Thanks! Yes thats certainly one of the applications we have in mind. Personally I am working on a C++ library for numerical linear algebra which can be viewed as a parallel/accelerated version of which also runs on the Parallella. I will open-source this project in a couple of months. This uses Epiphany BSP to run operations if some cost function decides it is worthwhile to use the Epiphany chip. We have also experimented with writing a C++ library which supported PGAS-style arrays on top of Epiphany BSP, but this hasn't materialized (yet).
However, as you mentioned, EBSP works just as well when used stand-alone, which is really exciting
PS: I am impressed by your work on ePython, looking forward to looking at it in more detail soon.