At Pixite we've been working hard for the past few months on a resource for our mobile artist community. This was our first time shipping something with Meteor, we primarily make iPhone apps. There have been a few issues but overall its been a great development experience. A good portion of the Meteor app is embedded in our iOS apps, which gives us the ability to make immediate updates to content and certain features without the dreaded Apple approval cycle.
Let me know if you have any questions about Source or the development experience with Meteor.