Thanks for posting that link to page two of "I guess 5 is coming soon. Saw two new files in the Avast folder." I don't know ANYONE could have missed that!

That's an off-topic inquiry about Win7. You have users in this one here asking about Vista and XP. And vlk's response, in all due respect, is more of a rumination than an answer... "that's what we do now" When is "now"? When is that over? Next week? Next version? That thread doesn't answer anything.
The firewall is the first line defense against threats, blocking unsolicited inbound connections its baseline function. Some users are serious as a heart attack about this and should be presented with a less cavalier attitude in that respect.
So, Redmond suggested their firewall should remain enabled. Wow. Go figure.
Well by default, the Windows firewall is only inbound firewall, i.e. it doesn't really control applications in any way.
If an app tries to open a server, an allow/deny alert pops up (given the default configuration) in WinXP as far as I know. That infers control.
I don't have much experience with configuring Vista and Win7, but I am lead to conclude from casual observation in forums, one can tweak outbounds. I believe there are third party overlays to add a user friendly GUI to that effect. I could stand corrected, tho.
In any event, the firewall in this suite is at best elementary in configuration granularity and apparently dependent on the Windows firewall. Not very exciting...
While the AV side is stellar, I have uninstalled the trial of IS.
Thank you and Good Luck!!