@npolet: I also think that Meteor 1.3 is totally worth it but I have been jammed with Meteor 1.3 for weeks, and I had to reimplement all new features on top of Meteor 1.2 to be able to release an update.
I really hope that I could release the next update built on top of Meteor 1.3. Most of the problems are just a pain in the ass during development, but white screen of death is a blocker that prevents me from releasing update built on top of Meteor 1.3. I have pasted some relevant logs here.
If someone has good ideas, I’d be more than happy to hear about them! 