Wow, something like that! Although I don't know why the screen only occupies 60% of the device...
But OUCH!
It's gonna cost $700. The FiiO X5ii costs $350 and I think it's gonna cost less in the next months. So it's double the price for just adding a touchscreen. I see there that it has WiFi, that's kind of cool, but there's a huge leap between those prices.
About the size of the screen. These devices should be as compact and portable as possible, so we don't want them to be huge. That should force DAP manufacturers to take advantage of every single inch of the front face. The touch-screen should occupy like 90% of the front face.
For that price ($700), it should has 64GB or 128GB of internal memory (that costs about $40), it should has x2 card slots, it should has also a full version of Android Lollipop or later (Google Store fully working) and not a limited imitation.
The specs it has right know should put it into the $450, not much more. Considering the X5ii costs $350, I would pay those extra $100 for the touchscreen and stuff, but $350 more is just not right with the actual specs.