So I'm using this space today to let interested people know when KEN will be launched - in case you came here because of a Facebook or Twitter post or some such. The last of the bugs (we hope) is about to be killed and it looks for all the world like KEN will launch on or around Thursday, June 13.
It will be available on Google Play and in the iPhone App Store. It's free to play. Right now there are extremely unobtrusive, completely optional ads (if you watch an ad your rank increases more than if you don't watch it). I have no idea whether this model is sustainable, must wait and see, and rely on feedback from the folks out there. Stay tuned for updates. And thanks.