@drgeoff Yes, it's not available yet. MS just said "soon".
Of course, W10 for IoT is not the same as W10 for PC or Tablet.
You will not be able to run desktop app from your PC out of the box on a Pi.
AFAIK it will share kernel and some API with W10 for PC and Phones.
I don't know what it means for us (Pi users) yet, but maybe we should be able to make "universal apps" which can run on any W10 powered device.
The goal is to replace WinCE, therefore it may have a partial support for Win32 APIs as WinCE have. In this case, some desktop apps will only need to be recompiled, some other may need some porting, and some other will not be portable at all.
The current license is fairly simple and forbid us to use W IoT in a production environment or for commercial use.
It is also forbidden to modify or to redistribute the OS itself.
The full license : https://www.windowsondevices.com/EULA.aspx
Of course, it is subject to change with the upcoming releases, but the current one allow us to experiment, develop and share code and apps
running on the OS, but not
an image of the OS
with or without preinstalled apps like Raspbmc.
Wait and see...