Just received an update from the folks at Tiny: Hello, first of all we would like to apologize to all of you who were not answered. When we introduced Sandbox technology we did not expected such a huge response and interest from general public for this technology. We are (simply said) not staffed enough. The introduction of Sandbox technology caused also certain problems to our firewall driver which turned to be less stable when used on certain HW/SW configurations. We would like to announce the availability of beta release of TPF 4 which is scheduled for September 4, 2002 and you will receive separate email about it. Since TPF 4 has completely new configuration database there won't be a bridge allowing to transfer old configurations into the new engine. The configuration of TPF 4 should be more simple and straightforward. What to expect? 1. New User Interface 2. Arrival of SNORT based IDS (later this month) 3. Smaller size 4. Greater stability 5. Some bugs here and there... What not to expect? 1. Content filtering - discontinued, TPF4 will OEM third party solution during fall 2002 2. Self-learning - we hope that this will not be necessary with the way the new TPF 4 is designed. There will be separate tool to selfdefine sandbox profile for given application later in fall 2002. We hope that new TPF 4 will be more simple and straightforward to use. We are also preparing certain initiatives that will simplify and automate the sandbox building procedures. There will be separate support system dedicated to TPF 4 - we will appreciate your feedback. With best regards TPF4 Team I'm glad to see they addressed several issues especially size and stability. Generally my overall experience with TPF3 was very good and I am looking forward to trying TPF4 beta! "Choices are everything!"