For if you are interested about this:
http://www.cometd.com/
http://cometd.vox.com/
http://svn.xantus.org/shortbus/trunk/bayeux/bayeux.html
Thanks for your mail.
> Are you going to add comet technology?
Since Comet is a layer above HTTP, wouldn't it best be
implemented as a WSGI application? If there's a standard such
implementation out there, I'm happy to add glue code for it to Aspen.
chad