Video game consoles are getting bigger and bigger. The original launch version of the PlayStation 5 weighs 4.5kg, nearly twice that of its predecessor (2.8kg). The Xbox Series X was so big that many on the internet joked it was the size of a mini-fridge - which led Microsoft to manufacture an actual console-shaped mini-fridge. But as technology progresses, it inevitably gets miniaturised as more battery, processing power and memory are crammed into smaller phone or laptop chassis. The same applies to video games. Nintendo blazed the trail of handheld hybrid gaming when it released the Switch, which became the...