What that article failed to mention is that Romney recruited and paid for travel and lodging for a bunch of college students to attend the poll according to Thursday's New York Times. Here's an excerpt from the Times article:
"...Romney campaign nonetheless is paying for three vans, scores of registration fees and at least a half dozen hotel rooms to pack collegiate supporters into the event...Romney campaign planned to have at least 225 student volunteers at the event with 90% living close enough to eliminate the need for housing or transportation. Last year the event drew more than 4,000 activists. But only about 600 people, mostly students, participated in the poll...."
"Stephen Dewey, a student at Harvard, said he had recruited seven students who support Mr. Romney to travel to the conference in a van provided by the campaign. "For those of you who have never been, it is a great opportunity (especially when it is free)," said an email message circulated by Mr. Dewey."
So, I guess you can't read too much into that result!