the information I've seen on the MS site is the pre-load of the cut back MS Office is only on the Surface RT and the EULA for that specifically precludes the use of that version of MSO for any use by a charitable organisation or any corporate or commercial usage, with threats of major court action if you do. Thus the RT is clearly NOT for the enterprise environment. I also wonder how they'd know if you're violating that term, but they do say it regularly reports back to MS what you're doing with the system.