iPhone 2.1 Update to Bring Turn-by-Turn GPS?

"What this update does show us is that, despite a buggy beginning, iPhone 2.0 has the ability to turn the world of mobile devices upside down. Now that there are a 3G and a GPS chip inside, and now that the App Store is up and running, the iPhone can mimic pretty much any other class of handheld device with the simple addition of software.

It won't just be a phone, a web browser and an iPod in your pocket. It'll be everything in your pocket."