The iPhone 4 was announced yesterday, along with the new iteration of iPhone OS. However, with iPhone OS running on the iPhone, the iPod touch and the iPad, calling it "iPhone OS" isn't exactly accuracte.
With that in mind, Apple changed the name of the operating system to iOS (the most recent version being iOS 4). If you're experiencing a little déjà vu, that might be because Cisco actually owns the trademark on the name IOS as an operating system.
Apple has run into this kind of trouble before. His Jobsness launched the iPad when the trademark for that name belonged to Fujitsu. The problem was solved pretty quickly, with Apple acquiring the trademark after a few weeks. That said, things haven't always been so simple. The company was sued for using the iPhone name by none other than Cisco. Cisco and Apple eventually settled, agreeing to both use the iPhone moniker for their respective products.
This time, Engadget reports that Apple decided to do things right and license the iOS name, which just happens to be the OS that runs on Cisco routers and switches.
According to a Cisco blog post:
Oh, and in case you're wondering, the name for Apple's video calling software, FaceTime, was owned by another company too. FaceTime Communications sold it to Apple and plans to change its name completely.