> A windows version for arm will be just like windows for alpha, ppc, mips and ia64... Absolutely useless because there will be little or no native software for it.
Not quite. Expanding the WinRT API would provide application-level compatibility across any Windows kernel. Which would be nice, really, and a rather better development experience (write once, er, that's it) than even linux provides.
I note, however, that the report does not indicate any useful expansion of WinRT.