> Iojs: 49 authors have pushed 168 commits to master and 572 commits to all branches. On master, 8,474 files have changed and there have been 1,524,012 additions and 708,276 deletions.

With that much change in such a short time, it would be extremely optimistic to think something didnt break. If I had a lot of production code depending on node, those numbers would scare the crap out of me.

You can absolutely migrate angular 1 to angular 2. Following good practices (i.e not having 4k line controllers) that were place since its inception only makes that migration easier.