Nice to see a lot of discussion going on , Can i just say that although the personal firewall is only 2 days old its obvious from the site that they are not new to the industry. Probably new to the home environment would be a better description.
Having used it for around 2 hrs yesterday im impressed so far with its feel and look.
Im at work at present so cannot show any screenshots but in a couple of days ill make a post and put a few up for your perusal.
The first point i might make is that its free now but that might change somewhere down the track cos what you get is a free 1 year licence which has to be confirmed with activation code before you even get started.
Having said that it was very easy to get started and all the rule setting options and application permissions and blocking were openly available and needed only one granting and never (so far ) again.
to ZA , lots of info available but i wasnt required to do much after granting all the running processes their access . Later today i will give the Sheilds up a visit and see how it fares there.