About this debate: Some folk in the technology industry, including the late Steve Jobs, have argued that we are now in a "post-PC" era. According to this view, the PC is no longer the centre of the computing world. Instead, it is taking a back seat to a wide range of new mobile-computing devices which will dominate the future. These include tablet computers and smartphones. Combined shipments of the two devices are forecast to exceed those of PCs for the first time this year. So is the PC passé? Or is talk of a post-PC world overblown?