[ebiester]

There is nothing stopping you from separating presentation from business logic in node. The difference is that with single page apps, we're returning to a true client/server model. The server is very basic and easy to write, the server becomes more complex.

Now, while it is true that the goal of meteor is the sharing of code between client and server, that is business logic code (ideally) separated from the presentation code on the client. (Further, we're still a ways away from truly sharing that code.)