My wireless Mac keyboard has a big key in the upper right corner with a left arrow on it. No way to tell if it's backspace, delete, or left. There's also a key in the lower right cluster that has a left pointing triangle on it, along with three other keys with triangles facing in different directions. Then there are two big keys on the left and right sides with upward facing hollow arrows on them. As well as keys with double left and right facing triangles on either side of another key with a right facing triangle followed by two vertical lines, and also another key with an upward facing triangle with a line under it. Not to mention the key referred to as "option" that's labeled with the word "alt" and a branching symbol.
