Do you have any insider info? The official MS blogs say that WOA will be released with the Offuce for the desktop and that no other existing desktop apps will run, which is obvious. There is absolutely no data on the ability of general public to write desktop apps for WOA, they do not confirm that and do not deny that. Whatever we may see in the consumer preview and the VS beta will also be questionable since it is necessary to have a properly unlocked ARM device to test that. I even do not understand how I can install W8 on the ARM devices that I am somewhat familiar with.