When David Hockney started spending more time in his native Yorkshire after 2005, he began painting the landscape in all its seasons. These pictures have been acclaimed by critics, including me, as a burst of brilliance from a mature artist. Hockney is so skilled at drawing and painting that it did not seem like good news to hear that he had turned his attentions to the iPad. The artist has a lengthy history of embracing technology including the Polaroid camera, photocopier and fax machine. As of 2009, he started iPhone drawings, then iPad drawings and now paintings. His early iPad drawings and paintings were sketchy, a bit rudimentary, more in keeping with what one might expect from a high tech Etch-a-sketch. Still, his iArt found its way into his lavish retrospective at the San Francisco Museum of Modern Art last year and now the iPad paintings are here at L.A. Louver Gallery through August 29.