I see this as a good sign. That the liberals and Democrats are already trying to smear Romney this early shows that they see him as a real threat. They should be worried.
Essentially, this piece brings up the same old issues and Romney's apparent "flip-flops" on abortion and gay-rights and brings up a less-discussed "Romney reversal" on the environment--RGGI.
From Romney's Wikipedia entry
Romney supports regulation of greenhouse gas emissions, primarily through voluntary measures He issued a 72-point Climate Protection Plan. His staffers spent more than $500,000 negotiating the Regional Greenhouse Gas Initiative (RGGI--pronounced "Reggie"), which Romney praised in November 2005, saying "I'm convinced it is good business." As plan details were being worked out, Romney pushed for a cap on fees charged to businesses who exceed emission limits citing concerns of increased consumer energy costs. He stated: "New England has the highest energy rates in the country, and RGGI would cost us more." This ongoing disagreement eventually led Romney and Rhode Island Governor Donald Carcieri to pull out of the RGGI in December of 2005. 
The article's treatment of the gay-rights issues really bugs me. They take his '94 quote that he's for "equality for gay and lesbian citizens" and extrapolate that to mean "gay and lesbian couples". Romney's always been against gay marriage and civil unions, but he's always been for equality for all citizens (hey, aren't "all men created equal"?) I see ZERO hypocrisy or "flip-flop" on this one and it bugs me when people make this misleading accusation.