- Typical usage seems to be experienced engineers who have some very
  particular requirements that can only be met using the ZPU due to
  technical or licensing issues.

  Academic circles have found the ZPU appealing since the actual core
  is trivial and allows them to focus on some other aspect of research
  or student exercises.

  Open source projects and hobbyists also have found use for the ZPU.

- Pre-requisite for gnuradio support tools