Enough with the "post-PC" talk. Desktop and laptop PCs are not just about sheer processing power, they offer comforts that handheld mobile devices can’t provide.

According to Apple’s latest filings with the U.S. Patent and Trademark office, the iPhone maker could apply the working principles described in its new patent, titled “Wireless Device Networks with Smoke Detection Capabilities”, into future iPhone devices, as well as other products, including future HomeKit devices.

Apple’s latest ally was revealed yesterday, with Tim Cook and Cisco Systems Chairman John Chambers, announcing a partnership, which took both companies almost a year to reach.

According to a leaked internal document retrieved by 9to5Mac, a number of Apple products are scheduled to reach either “Vintage” or “Obsolete” status this week, prior to the September 9, iPhone event.