Sun to HP: Bang, bang, you're dead

 At 21, Sun Microsystems retains a good bit of the aggression of the feisty startup which believes in taking the competition head on.

 Technology is its primary focus in the world of geeks in which it lives, but in combativeness and doing a merry dance around its competitors it outdoes an industry known for such gamesmanship.

 Sun recently hit one of its own milestones in this kind of activity with a mailer that featured right upfront a coffin with the legend