The SlateBook 14 was actually the subject of an official announcement back in June. I guess I missed it amid all the Computex commotion. HP quoted a $399 price tag at the time, but now that the system is actually up for sale, the company is charging a little more: $429.99.
For that (relatively) modest sum, the SlateBook 14 gets you a 1080p screen with a 14" diagonal, a Tegra 4 processor from Nvidia, 2GB of system memory, 16GB of eMMC flash storage, 802.11n and Wi-Fi, and a 32Wh battery rated for "up to" nine hours. The chassis is pretty thin, too, at 0.63". I'm less impressed with the weight (3.71 lbs), but that's probably more an artifact of the screen size than anything.
And yes, the SlateBook 14 runs Android 4.3 Jelly Bean—and nothing but. There's no getting Windows on the thing, and I'm honestly not sure how usable Android apps are on a 14" laptop display.
Between this and a Chromebook... yeah, I'd probably go with a Chromebook.