Is Windows on ARM still immature? I'd think with the Microsoft Surface (ARM processors for several years now) that Windows on ARM would be fine but I've never owned or used one so I don't have any anecdotal evidence, just my assumptions.
My brother is on the Windows side of the world (MS partner and all that, lots of CRM/DB work). He said if you stick to mainstream apps (MS apps, Adobe, etc) ARM is basically on parity with x86, tho not the performance choice. He said these days he rarely has customers come with support issues that boil down to "bug only occurs on ARM", though "it's slow on ARM" does come up. OTOH...If you have specialty/niche apps that you rely on, or apps from a small dev who doesn't have the resources to support 2 archs, your mileage may vary.
