Is possible to run for example MS Office
Here is official Canonical citation:
"Today’s tablets are as powerful as ultra-light laptops. Ubuntu uniquely supports a new category of convergence device – add a keyboard and mouse and your Ubuntu tablet becomes
a full PC and thin client, with access to Windows apps over standard protocols from Microsoft, Citrix, VMware and Wyse.
That lets enterprise IT deploy a single, secure, portable corporate device for all kinds of applications."
Some kind of virtualization, but it can be real to run MS apps on ARM