Apple plans to launch a new platform Wednesday that could put a big dent in wireless carriers’ bottom line. Introduced at Apple’s Worldwide Developers Conference in June, iMessage lets users on iOS devices chat with one another like they would send a text message. Like the BlackBerry Messenger, iMessage allows them to bypass the SMS text-messaging network–along with carriers’ texting …

We may not have the iPhone 5 yet, but the iPhone 4S is here, packing an improved camera, a faster processor and intelligent voice control. If you’re going to splash your cash on one of these — or on an iPhone 4 (they’re the same size and shape) — you’re going to want a good case to go with it. …

While many of the iPhone 4 cases fit the 4S, case manufacturers are seeing the arrival of the 4S as a good opportunity to introduce new designs. WaterField Designs, which is known for its high-quality sleeves for laptops and iPads, has just released a leather wallet that also does double-duty as an iPhone case. It’s simply called the iPhone Wallet …