Hi Glyph:

I think inlineCallbacks is neat,

InlineCallbacks are neat! InlineCallbacks perform much of what I do with Stackless Python and Twisted. One of these days, I would like to run tests to compare the two. I suspect there is additional overhead (from what I recall, I see stuff in the code like unwinding stacks/checks for infinite recursion)

but its strength is really operations that are truly conversational; >where the calling end of the conversation actually does need to wait for >each step of an asynchronous conversation to complete before moving on to >the next one.

And a lot of the new Web APIs are conversational in nature! I think inlineCallbacks will grow in importance as web programmes move from mashups to orchestrations/choreographies. Cheers, Andrew