Hardly anyone will buy a Sony glasses-free 3D TV. That's obviously not pushing it to the mainstream.
A lot of people will buy the glasses-free 3D technology on the 3DS. That is making it mainstream. The size of the screen doesn't matter. The technology itself is, and can only be, pushed to the mainstream by Nintendo, at least in the near future.
And no, the article clearly does not state that Sony wants to push glasses-free 3D. I really can't understand where you get that idea from.
It may not prove anything new, but it is a much better application of the existing technology. That is why people everywhere will buy it, and that is why it will be considered mainstream.
"Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father except through me.' " ~John 14:6 (NKJV)
