Hi Jeff,
Looks like you've made some progress here. I think your last comment is the most significant though, if the AtikAir Service isn't running on the Pi, then AtikAir can't connect. Can you start the AtikAir Service from bash and then send me the output. If it's crashing, for example, there might be some clues as to why.
You don't need to have a camera connected for the AtikAir app to connect to the pi, but you will need the ArtemisHscService running on the Pi in order for it to work. Even if the AtikAir app isn't working (because the AtikAirSerive isn't running on the Pi) you should still be able to connect to a camera if you point AtikAir to the correct IP address, select remote, then start up a program (i.e. capture).
By the way, there is a new version of the installer on our website, we've improved the AtikAir App, so it might be worth installing that.
Chris.