The iPad is great for some things, but hopeless for others. I’ve had one since its launch in 2010 and I use it every day. It has a terrific battery life, springs instantly to life when opened, is robust and portable and, when fitted with a sim card, provides good connectivity on the move. One could, I suppose, try to write a book, edit a movie or build a big spreadsheet model with it – just as one could, in principle, dig the garden with a teaspoon. But you’d be mad to try. The truth about computing is like the truth about steeplechasing: it’s always horses for courses.