I bought and returned the AVP. I feel like there's a cohort of people who always mention wanting "opened up" operating systems, and I get it, but this is totally not the problem with the AVP. iPads are popular too, after all.

The AVP is an iPad, not a computer. It does offer a better "personal computing" story compared to a tablet, but that's it. There are many issues, but the cost and general UX is the issue. There's not a lot to do, and it's worse at most tasks than the alternatives.