Thanks! We're building a hosting service that you can deploy your apps to. Our plan is to have a free tier for your first app, then charge for additional apps. We're still finalizing this, so would love to hear any thoughts.
One reason I looked at Dreamhost for hosting is they have an unlimited # of websites tier that is super cheap(sucks because it's php). If you can't build a payment component then some kind of pay as you go option would be cool.