Alternatives to Stackless Python?

[binarybana at gmail.com]

After recently getting excited about the possibilities that stackless
python has to offer
(http://harkal.sylphis3d.com/2005/08/10/multithreaded-game-scripting-with-stackless-python/)
and then discovering that the most recent version of stackless
available on stackless.com was for python 2.2 I am wondering if
Stackless is dead/declining and if so, are there any viable
alternatives that exist today?

I found LGT http://lgt.berlios.de/ but it didn't seem as if the
NanoThreads module had the same capabilites as stackless.