Not sure if this is new to Beta 4, or if it appeared earlier in iPhone 3.0, but it's the first we've seen of it so we're passing it along. What is it exactly? Simply go to Contacts, pick a name, and then swipe to call up the red "Delete" button that we all know and love from Email and other, previous apps going all the way back to iPhone 1.x.

Nice way to speed up removing unwanted or outdated information. Thanks Apple!

(And thanks Adam for the tip!)

Welcome to iPhone 101, a single point of success for new iPhone users, and for veterans who know new users and need a quick and helpful place to point them. This time Tekzilla Daily went and did the heavy lifting for iPhone beginners, with a quick how-to video showing Apple's multi-touch gesture for "swipe to delete".

In any app that supports it, such as email, SMS, or iPod, you can simply touch the item you want to delete, briskly swipe your finger horizontally across the item, and a red "delete" button will appear allowing you to banish the item from your iPhone forever.

It can be a little tricky at first. Too slow and you might open or launch the item instead. Too quick and it may ignore you. But after a few tries, you should be happily ditching anything you no longer feel the need to keep with you.