I just pushed out the official release this weekend and don't have any apps yet running in production. My goal is to have people start building out apps and support any uncovered use cases that crop up. Having said that, there's no reason this can't be run in production and I plan on deploying a couple example apps so people can play around.
This looks perfect for a current project with a quite a bit of jQuery and partials. I may just redo using Sync. Do you have any recommendations for using on Heroku? Should I just use Pusher? Also does this work with Rails 4?
Faye will gladly run on Heroku with a foreman process, but I think Pusher is a tough choice to beat to get you up and running quickly. Sync does indeed support Rails 4. In fact, the demo app in the screencast is a Rails 4 app :)
So either Pusher or Faye are required, and Pusher is a commercial service, whilst Faye requires a dyno to run on Heroku? Have I got that right? TBH I'm not familiar with either Pusher or Faye, so just trying to grok the dependancies for Sync.
That's correct. If on Heroku, Faye would run in it's own dyno process, while Pusher is a commercial product. Sync requires a pubsub server to talk to, so either is a must. I suggest prototyping out with the Pusher free plan if you just want to throw something up to experiment with.