Yeah, I think this is a big part of it. The mobile ecosystem has evolved in such a way that locked-down devices are the standard, and content providers have had a lot to do with that (apparently B&N's decision to lock down the Nook Tablet after having released the super-hackable Nook Color was made almost entirely at Netflix's insistence). I'm certainly a lot more annoyed at MS over their ARM positions than their x86 ones, but this attitude predates their entry into the sector.