I did not think i would have to get involve in this. I just make thing clear for everyone. Java flash .net are cross platform programation lng, they can work on any OS/ISA mix as there only a single software to port the VM.MS will have to enforce hardware standart for all SOC, requirement will be much higher that android IOS conterpart. Performance will be abysmal compare others tablet.
Quality of the compiler for windows on ARM : unknow Quality of the VM for windows on ARM : unknow Quality driver for windows on ARM: unknow Support for older component : unknow Experience of programer on windows on arm : unknow