This is quite an improvement over 2.1. The interface has dramatically improved. The buttons now look more Mac-like. Now to get rid of the jagginess of the search field. I also like not having to open the hierarchal tree for the different ports that you can monitor and not having to confirm that I wish to quit the application every time. The help documentation is actually useful now and gives a brief introduction to the tcpdump command. Good work overall!

There is a small improvement that I would like to see in the autoupdate feature. It would be nice to actually view the progress when it is downloading the new version. Something like what the Sparkle framework does where it shows the remaining amount of data to download that updates as it finishes.