Besides new phones, Apple is expected to significantly upgrade its Apple TV set-top box, which has barely changed since it went on sale in March 2012. The key difference in the new one, expected to cost about $149, will be voice-activated searching (using Siri) and control across multiple sources of content such as Netflix and iTunes, plus the App Store allied to a motion-sensitive controller, rather like Nintendo’s Wii.

The changes look timely, if not overdue. Apple TV is outsold by challengers including Amazon and Google, according to market research firm Parks Associates. Amazon’s Fire TV set-top box already has a voice-controlled interface, and Google’s Chromecast plug-in stick can be used to ‘cast’ content directly from a computer or phone to the TV. But there is plenty of room for growth, as only 20% of US households with broadband have a streaming device, the report found.

The refreshed Apple TV could also add the capability to play games and other apps. With gaming already a huge pursuit on smartphones, the prospect of it on a TV is exciting to iPhone developers, who for years have been wishing for a new Apple platform for apps. 

From the article "Why is Apple customers' appetite for its products insatiable?" by Charles Arthur.