In their evil attempts to take over the internet, Google just announced Google Public DNS, a free service that aims to give speed, security and validity for users who choose to use their DNS service. I'm guessing that this will do similar "searchy" things on host not found errors, similar to the OpenDNS service. John Gruber (Daring Fireball) has a few quick thoughts on this as well.
So my question is "is this a bad thing?" Google has services that are part of pretty much every aspect of our online lives, should we decide to use them. RSS, phone, email, contacts, documents, etc. Is this move an indication that they're moving into providing other sorts of connectivity solutions (ie; free bandwidth from Google as long as you use their ChromeOS on a free netbook maybe?) Or just an honest attempt to use their infrastructure to make the web faster?
As an aside, check out the book Google Planet (I got it from the Audible free audio book giveaway at thanksgiving). Great look at how Google does it's things and why, and that (at least as far as I've gotten) most of their motivations are fairly pure and non-evil.
Update: I just did a 2 minute test and there's no domain wild-carding (ie: giving you back a page of ads or suggestions when you go to a non-existant domain) and the service seems speedy enough. Seems all very benign.