I clicked through to this webpage (and many of its linked pages) and I don't see how I could personally get a hold of this build. I'm eventually told that "if I want to learn more I should contact a Windows IoT Distributor" which is its own page with a lot of email addresses.

Am I missing something? Like many workarounds mentioned in this thread, this certainly doesn't seem to be one the average Windows user could reasonably take advantage of.