Google today launched a new, free DNS service—called Google Public DNS—aimed at making your web browsing experience even faster. Here's how it works: For those of you who are unfamiliar with DNS (and it's cool if you are—as long as DNS is working, most people never need to know what's going on), Google offers an explanation:

AT&T has been dragging its feet on data tethering for months now, so if you're fed up waiting for official support and desperate to tether your iPhone's internet connection, weblog MobileCrunch details how to do it on the latest iPhone OS. The multi-step process isn't all that difficult, but you'll want to set aside a little bit of time. In the brief overview, enabling tethering works like so: