[karterk]

With servers being a commodity these days, I can only think of rare use cases where this would be helpful vs just scaling horizontally behind a load balancer. Also, in most real world systems I have seen, the real bottle neck is in the I/O and rarely in the business logic or server application level.

[int64]

Thats very true. The plan was to give the user heavy asynchronous IO functionality that appear to the user as making a simple ajax call with a callback function. Provides the developer asynchronous functionality on the server side. Scope variables and so on are all handled behind the scenes.