the full realistic Siri port everything even connecting to apple servers has been released please google search for the .deb file or the repo including the file called H1Siri its a 109mb file so look for that one the connection is using a different DSN to connect to Apple's servers right now its being hammered so take a couple of days to get it or possibly use it later good luck
here is source i guess
http://cydiahelp.com/how-to-fully-install-port-siri-on-iphone-4-and-ipod-touch-4g-full-guide/
here is source i guess
http://cydiahelp.com/how-to-fully-install-port-siri-on-iphone-4-and-ipod-touch-4g-full-guide/