Damien Martyn has announced his retirement from all international and domestic cricket.
A subsequent statement from Cricket Australia suggests that he fell, not that he was pushed, though he couldn't have too pleased with his performance in the second Test. His last scoring shot in the second innings was a great one day biff, but his dismissal was soft. That said, he probably played fewer tests that he should have, even though he'll probably now be seen as the first Australian casualty of this Ashes series.
Cricinfo has published some highlights of his career.