Cool Idea, BUT....
I just watched the videos on their website, and it left me wondering. I think it definitely has a high 'cool factor', but wonder how practical it would be in use. I tethered my single hammock to the same tree as my buddy tethered his to one time, and every time I moved, he moved and vice-versa. I wouldn't want to share that tent with a restless sleeper.
Also, the first video implies you need climbing gear to pitch your tent.
I do like that you are off the ground, that's why I like my RTT.
Definitely a really cool fort for the kids though.
Just my two cents....