He was pleased with his round of 68 that included only one bogey, but when Simpson pulled out his cellphone to check the leaderboard as he sat down for lunch, he saw Haas on top with a 64.
The first shows a user's hands on a traditional hardware keyboard projected in an on-screen representation (as background, Apple mentions the ergonomic strain of looking down to check your hand placement, so perhaps that's the thinking behind this one).
"We couldn't quieten him down, we didn't know what was wrong, so one of the nurses went across to check that she was all right and in fact she wasn't all right, " said Ms Stevenson.