June 4, 2012
Their first app is for iOS and it's called Ita:
"Ita makes list-keeping better. We’ve made it really easy to mark stuff you’ve done, move items around, and keep track of everything you’d like to remember. Ita will make all sorts of list-keeping and note-taking quick, fun, and simple."
Check it out, and while you're there make sure to scroll to the bottom of the page to see the team.