I think we are all missing the point here, the gOS linux package walmart is trying to sell isn't targeted at geeks and technology enthusiasts like us. Its targetting the general masses, the people who just want their computers to work and would go nuts if there's a popup or a weird message, the people who only use their computers to browse internet, check emails, and occasionally doing some office work or photo viewing like your mom and dad.
It proves a lot more than just a 200 cheap PC that walmart puts on the shelf, they are experimenting with a new marketing niche, which also demonstrates how far linux has come along.
Yes, the computers are probably overpriced, yes the computer sucks, but it's getting great reviews, and is already sold out online about a week ago. That obviously verifies the viability of this market. and I think other retailers will soon see this opportunity as well. Everyone's gotta hop on the linux wagon at some point.