We hope to launch something on this sweet domain someday.
Buuuuut.... we've been sidetracked by other work, so we might not get to our idea for zion.io for a couple years. 2016 looks promising! The year of the Monkey.
If you stumbled here because you really want this domain, we might sell it for the right price, something which allows us to purchase another domain at auction, of similar quality to zion.io.
You may contact us at (move yer mouse).