2 more things;
4k movies will probably be quite widespread when Fusion hits the stores, so scaling up to 1080 probably won't be enough. 4k TVs will only increase in numbers during the Fusions life time
Hasn't it crossed anyone else's mind that Sony might the first to do this? Like Soundwave just said in the post above, they've already done this with Vita and Vita TV. Won't they continue in that direction?
I'm on Twitter @DanneSandin!
Furthermore, I think VGChartz should add a "Like"-button.