It's a cool camper, but sitting up high on a bicycle just makes it inefficient and sketchy. A head-wind or hill would stop you or take you backwards, and side-wind would send you rolling, and a tailwind or downhill would be fantastic until you tried to stop or or turn, when you'd overpower your brakes and steering, and probably fold your front forks.....it could be pretty ugly. You'd also want motorcycle wheels and tires or they'll fail after a couple of potholes because of the extra weight.
You know, if you're wanting a human powered camper, you could probably move faster and safer by just building a light, low trailer that you can pull behind you.
It would be cool, but I think a tent will always be more practical.