Poor Hockney’s still fuming in France

IF YOU’VE ever tried to use the iPad Brushes app to knock up an attractive drawing, you’d be astonished by what David Hockney achieves with it, in his joyful The Arrival Of Spring exhibition at the Royal Academy. How admirable, at the age of 83, to still be not only able, but interested in mastering new technological skills, especially when you’re already one of our greatest artists. What a pity, though,