The term 'smartphone maker' can be summarized by the crossword solution 'PALM'. PALM is an American technology company that specializes in the design and manufacture of smartphones, tablets, and other mobile devices. Founded in 1992, the company has a long history of producing innovative products, such as the first smartphone with a touchscreen and the first handheld computer. PALM's current lineup of devices includes the PALM Pre, Pixi, and Treo.