WebSense Security Labs
Does anyone have have any Zitmo samples to share?
You can get Symbian version from contagiodump mini-collection. Look for "zitmo" in the name http://contagiodump.blogspot.com/2011/03/take-sample-leave-sample-mobile-malware.html
Though BlackBerry version is still difficult to find. :(
Operated by the Georgia Tech Information Security Center