Just to clarify: that's not one individual mouse - such as a cheeky, fun-loving rodent inhabiting said analyst's house, much to the annoyance of his hapless, accident-prone cat. No he's talking about the humble computer mouse, invented back in 1963 by Douglas Engelbart and probably now attached to over a billion personal computers even as I type this. No matter; Garter analyst Steve Prentice reckons that their final days will come in the next 3-5 years.