Since I don't have kids, I've never paid any attention to this market... Are the only solutions available today things like NetNanny, which are (as far as I kno

Since I don't have kids, I've never paid any attention to this market... Are the only solutions available today things like NetNanny, which are (as far as I know) basically just preconfigured firewalls? Basically, what's the competition like? If that's the case, then it seems you guys have a solid idea :)