Stackless is missing some important parts. I've spent a great deal of time working with it over the past few months, and there's no good SSL socket support. The

Stackless is missing some important parts. I've spent a great deal of time working with it over the past few months, and there's no good SSL socket support. The built-in socket module will block the entire process (all tasklets), and while drop-in replacements exist, they either don't work with SSL, are buggy, or both. Stackless also lacks Erlang's transparent support for multi-process and multi-machine execution, though I talked to a guy who's working on adding that for his Master's degree.