Are there any ways to be hit by surprise charges on Bronze? I'm assuming setting up a ping via the New Relic trick people used on Heroku is sufficient. Also,

Are there any ways to be hit by surprise charges on Bronze? I'm assuming setting up a ping via the New Relic trick people used on Heroku is sufficient. Also, for a relative novice, how easy is it to get a Rails or Sinatra app up and running? My concern longer-term is that Openshift would go the same route as Heroku. Is there anything about their business model that might indicate that's not a major risk?