It looks very nice and sleek, and I must say the industrial engineers did a good job, however... I don't think it's necessary.
How many of you actually look at the keyboard and type or type with one hand?
It's unnecssary. Also, up above somewhere, someone said if you're a gamer, you'd know what buttons you're pressing, and he's right. You don't need the keyboard to tell you that by pressing "space" you're jumping.
That's my 2c.