Security Note -- SurfinGuard sandbox security

["Mark Jurik" <mark@xxxxxxxxxxxx>]

SurfinGuard is a personal sandbox security utility that proactively monitors 
executable programs for malicious behavior, and automatically blocks any 
hidden Trojan or worm that breaches security rules.

ZoneAlarm is offering a special deal on it at ...

http://rsp.rsc02.net/servlet/website/ResponseForm?SgETWTZVW-z.3dU

Does anybody have experience with sandbox security measures?  

 - Mark Jurik