Lambda the Ultimate

Oz supports distributed objects, JINI can move objects. But Erlang generally speaking moves only data around, and in the Web Services debate there are folks who say that data-centric is the best way to go.

As with all design issues there are probably several dimensions involved in deciding what approach to take; I'm curious to hear what people believe those are (the web services article lists "evolution, intermediaries, and recoverable operations") and when the tipping point shows up in favor of one approach or the other.