Blizzard has just reverted their account action versus Fs. He was the world first to reach level 90 in 4 hours time, by killing off Mistweaver Shamans. Fs always claimed he used no exploit, did not act versus the rules of conduct, but Blizzard took aways his achievement and set him to level 87.
Cataclysm will be launched within a few hours, most players wait with anticipation for midnight. But what can you do till then?
If you plan to get to Level 85 as fast as possible you will most likely want to stock up quests to turn in. These selected quests will bring you roughly 35%-40% into Level 80 with minimal travel time.