I'm very happy that there are several active open source projects to choose from. I get a similar impression of Meteor vs. Derby as I get from Rails vs. Django.

I'm very happy that there are several active open source projects to choose from. I get a similar impression of Meteor vs. Derby as I get from Rails vs. Django. (To me, their difference is about productivity vs. flexibility, although IMHO Rails eventually became just as flexible and "won". So it's interesting to see if Meteor achieves the same.)