Gallup Shocker

Gallup finds Obama leads McCain by 49% to 47% among likely voters. This is within the poll's margin of error. In other words, they are essentially tied. Even more important is the following caveat:

Almost all of the interviews in this three-day rolling average were conducted before Wednesday night's third and final presidential debate at Hofstra University.

Since McCain is widely thought to have won the third debate, can we expect their numbers to be tied by Saturday?