The Case-Mate ID Card case appears nearly identical to the 3G/3GS case we reviewed last year, except of course to fit the new iPhone 4. The case is essentially the company’s Barely There iPhone case with 2.5mm added to accommodate some cards. The card holder, as the name suggests, can pocket an ID card, but also bank cards or even business cards. The case offers not much added bulk for the feature and should be easy to fit in a pocket like any other iPhone case. The case is available in Black (pictured), Metallic Silver, and Pink for $34.99. www.case-mate.com

The Gumdrop Skin gets the honor of first iPhone 4 case in our hands. The Skin is a silicone wraparound case that comes in blue, black, clear, and pink/ magenta. It retails for $29.95. The Gumdrop Skin features raised dimples across the outside surface for grip and style. The case promises to be form-fitting, lightweight skin with scratch resistance and shock absorption. www.gumdropcases.com Looking for more iPhone 4 cases and accessories? Check out my iPhone 4 video playlist: www.youtube.com

iOS 4 offers over 100 new features. Here is a description and demo of one of major new features, the new app folder system. iOS Features Video Playlist www.youtube.com iOS 4 is a free upgrade for the iPhone 4, iPhone 3GS, iPhone 3G, iPod Touch 2G, and iPod Touch 3G. An update for the iPad is expected this fall.