So you are a fan of Alienware designs? You may want to check out Alienware Concept UFO too. It is their vision of handheld gaming PCs of the future. It has an ergonomic design with emphasis on a cooler performance. It also has detachable side controllers.
The device can connect to a larger display for more immersive gaming. While you can buy this gaming device yet, the below video shows what you can expect from it: