What would really be ideal is Intel's Matrix RAID, which allows you to either stripe or mirror individual partitions. That way you could carve up your two-drive volume however you'd like. Stripe your swap/scratch partitions for performance, then mirror your OS and data partition(s) for fault tolerance. I'm truly surprised Lenovo didn't think to include this versatile chipset.

Blind and low vision users already have enough of a time navigating the existing web 'cause so few designers and developers conform to accessibility standards. As nifty as these concepts sound, do they truly follow good universal design practices?

Not all web content is visual. This new technology has its place, sure. But it also has the potential to be abused by developers who might utilize it not because it's a good idea but because it's new and shiny and because they can.