That is a sizable, net 18% bounce for Obama. It is a little bit bigger than the net 14% bounce he has received so far in Rasmussen, but Rasmssuen won't be entirely post-Iowa until tomorrow. With Obama's Iowa bounce now peeking in the mid or high teens, a New Hampshire win would put him well on pace for the typical bounce of net 33% for winning both Iowa and New Hampshire. That is a large enough bounce that he will probably take Nevada, too, thus creating real problems for Clinton. If Clinton were to win Nevada, she would still be in the game come February 5th. However, without any non-Michigan wins heading into January 29th, she could very well lose Florida, and be in real trouble.
In both Gallup and Rasmussen, Edwards has received nearly as large a bump as Obama, but he still trails both Clinton and Obama by double-digits. A second-place win in New Hampshire would be huge for Edwards, but according to current polling it also appears unlikely.
On the Republican side, Huckabee stays in the game. However, it seems likely that McCain will take the national lead after New Hampshire. Huckabee, however, might be able to regain it after South Carolina.