As far as Node.js is concerned, Stackful.io [http://stackful.io ] provides an easy (and low-cost) way to deploy and scale your app on Digital Ocean SSD servers.
Meteor support is coming next week, and Rails will follow shortly.
Unfortunately, the problem with freemium is that at the end paying customers have to sponsor the free accounts.
And in most cases providers do as much as possible to lock you in, so you don't switch to a cheaper option when you reach certain size.
On the other hand, we want customers to know that they can leave us whenever they need to. Your apps are completely portable, so there is no reason not to give it a try.
I always try to keep myself using less than 4 tabs in Chromium. Used to work with several browser windows, tens of tabs each, but found out that this is just noise, and is detrimental to productivity.
[1] https://github.com/addyosmani/todomvc [2] https://github.com/SachaG/Telescope