It’s been a while between drinks for Sony PlayStation, with the PlayStation 3 launched in 2006. But given the first three generations of the machine sold more than 300 million units, there was plenty of interest in the announcement about no. 4, which some have said is a ‘tablet-inspired console’ that hopes to face up to the host of new screens it’s now competing against. And the hype film showing how to ‘push the boundaries of play’ was no.1 on AdAge’s viral video chart, clocking up more than 18 million views.