Got a shiny new Oculus Rift or HTC Vive? Then you need a powerful gaming-ready computer that can run your VR headset's demanding high-res, high-refresh displays. But there's a problem -- your big, bulky PC isn't exactly portable, and VR requires cables. Enter HP's new concept Omen X, a gaming PC stuffed into a laptopesque form factor, moulded to wear as a backpack, and fitted with hot-swappable batteries.