The bigger issues is the unknowns, yes, I use the Surface RT 64G like a laptop (using the Desktop), I use the same device as a tablet, I understand windows threshold might change that, I think that is a mistake, I understand they had a marketing issue, but they want one Windows not fifty (I understand Windows RT is just Windows complied on ARM [WOA]), just in case I need to mention I have been working on Windows since version 3 (being my Zenith SuperSport, running DOS 6.22 [it started with Zenith DOS and Windows 2.x]). My first tablet was a HP (Palm) Touchpad, and it had a Bluetooth keyboard and QuickOffice and Picel Office, I have Android devices (got my kids NEXTBOOKS), I have Windows devices from Compaq Aero 4/33c's to Compaq Armada, to Acer Aspires to Lenovo Thinkpad (my work device). For a living I work on Server devices (Windows/Linux/VMWare) etc...
I understand Windows very well, Microsoft is in a pickle I know they want to change yet again the Windows Interface [from DOS Executive, to Program Manager, to Start Menu, to Metro/Modern], Metro/Modern UI did not work just like the ribbon bar did not work in Office 2007, so they combined the ribbon bar and the file menu system in Office 2010. Now Windows threshold wants to combine Windows 7 UI with Windows 8 UI and like the office counter part see if it will run and be accepted by the masses.
The issue is Windows is known as a fancy Window Manager, that is what it was, that is what it should be, I understand WOA is to be stripped down and not run x86, that does not mean others can't re-compile their apps for ARM (that is a Microsoft requirement that it has to be a metro/modern app), it is not because ARM can not run other apps.
Microsoft might want to change and create a tablet only experience, I am fine with that, just do not change what we use today to what some want, and others don't, otherwise you will have people like me who want the desktop stay with Windows RT 8.1 just like there are tons who are staying with Windows 7 because they do not want to re-train their employees on Windows 8/8.1 [I am not debating on if one is better then another]. The issue is I want a desktop, you and others do not want a desktop, I am fine with you not wanting a desktop, but I do. Windows as a Windows Manager is what I want, nothing more, nothing less. Microsoft can do what they want with new devices, but some of us got used to using Windows like Windows, they have suggested they should have not called it Windows RT, they have suggested they do not want three OSes, I want my Windows RT to stay the way it is/was designed...