Today at 10am Pacific / 1pm Eastern, Apple will give a keynote presentation at the Bill Graham Civic Auditorium in San Francisco. Apple hasn't disclosed what will be announced; the invitation merely says "Hey Siri, give us a hint." If you actually ask Siri, you'll get some humorous responses. But there is no doubt that today is the day that Apple will announce the 2015 version of the iPhone. If Apple follows tradition, it will add an "s" to the name, announcing the iPhone 6s and the iPhone 6s Plus today, but of course they might change that.
Apple is also expected to announced a new version of the Apple TV. The first Apple TV was introduced in 2007. It was updated in 2010, 2012 and 2013.
I'm sure that we will also hear something about iOS 9 and the Apple Watch. Some folks also believe we will see a new iPad introduced today, but I don't expect that. In recent years, Apple has hosted a second event in October to focus on the iPad, and a new iPhone + new Apple TV + Apple Watch seems like more than enough for one presentation. Thus, I'd be surprised to see new iPads today. [UPDATE: OK, I was indeed surprised!]
If you want to watch a live video stream of today's keynote, you can do so on an iPhone, iPad, Mac or Apple TV. You can also watch it on a PC if you are running the new Windows 10.
