The Amazon Echo is a pretty basic idea – a speaker for the home, with an voice-controlled AI assistant that can answer questions, add items to your shopping list or play music. The tech industry at large seems to have taken to the Echo – and Amazon’s Alexa digital assistant – and now we’re seeing other major firms work to get their own Echo alternative on the market. Google announced Home, its own speaker-cum-AI last week, and now a new report suggests that Apple is working on exactly the same thing. Here’s what we know so far.