A quick, 10-minute video walkthrough of everything you need to know about iOS 4 on the iPhone 3GS
We've given you our massive iOS 4 feature walkthrough but if you just want to get going now, or just need something quick you can email a friend or family member, here's a 10 minute video guide to get your started.
We're showing it off on an iPhone 3GS, which should be similar to how it will work on an iPod touch G3. If you're using the iPhone 3G or iPod touch 2G you won't get the multitasking and a few other things. You'll blame Apple. Apple will blame the hardware. The hardware will try to frustrate you into upgrading to an iPhone 4. You've been warned.
Note: before you update, save yourself some time and potential hassles and go read our getting ready for iOS 4 post first.