Still, users having choice and forcing businesses to compete to win is good for end users and I support that 100%.
DNS redirection affects ALL programs that are trying to access a network address (obviously unless directly by IP). So when my Jabber/XMPP client tries to contact doesnotexist.example.com, being redirected to an advertisement page doesn't help me very much, does it?
Google Toolbar and Google Chrome defaulting to Google as a 'landing page' of sorts only affects your web experience and only when using those pieces of software. This is a far cry from Comcast's DNS servers resolving ALL DNS traffic that should return 'does not exist' to their advert-filled web servers.
Not DNS redirection.