This is not what "irreparable harm" used to mean. Apple's lawyers are celebrating tonight.
EDIT: If I plan to kill a cat, and you file a lawsuit to stop me, the judge may issue an injunction for me not to kill the cat until the lawsuit is complete. Humanity does not know how to unkill a cat, so if I did so while the lawsuit was pending, I would make the lawsuit moot and evade justice. That is "irreparable harm", at least if it's your cat.
On the other hand, if my actions are causing you mere monetary harm, we know exactly how to repair that: take money from me and give it to you. Injunctions should not be issued in such cases, because the plaintiff can always be made whole later on by simply receiving an appropriate amount of money.
Apple has managed to have a bogus patent issued - the patent, as far as I can tell, covers any sort of "search-as-you-type" system. Any sort. The Firefox awesome bar, Android search (every Android device that exists), Google Instant, any webpage with javascript autocomplete... you're all violating Apple's patent. And if Apple can find judges as friendly as Ms. Koh, all of these products can be taken off the market indefinitely.
And now they're grabbing up that stick and going to town with it.