As evidence, I offer one word: Iowa.
The cell phone issues is less of an issue these days, because groups like Gallup now poll cell phones. But, as you allude to, if they're not accounting for the proportion of the overall electorate that will be made up of young people, the polls will be skewed in St John's favor. Conservatives want live babies so they can raise them to be dead soldiers. - George Carlin
Saying you're right, do you realize what that means? We may be seeing the end of the GOP as a national political party.
It's not even close to being over, because Obama is not - you know - actually all that progressive. A few million people switching registration doesn't mean squat if there isn't a tsunami-sized policy shift.
Obama may make some paddling pool ripples - he's going to have to, to prove that he's not a slightly milder and more personable Bush II.
But there will be no tsunami. And the rot will still be there under the surface, the networks of crazies will still be dropping spores, waiting for a better time to sprout.
The youngin's will show up.
I certainly hope so. I vividly recall voting for Humpfrey in '68, my 2nd Presidential election, after having been so bitterly disappointed by LBJ after the '65 escalation in Vietnam. (I was proposing a National Day of Prayer to have millions of people praying for him to have a heart attack. Call me disillusioned.) I was NOT excited by Humpfrey, but even staying at home was not an option. California seemed in play. As the Dutch said while fighting the Spanish: "It is not necessary to have hope in order to persevere."