The 2011 Sports Illustrated Swimsuit Issue is available Tuesday, February 15th. The hype surrounding the mag’s release is reaching a fever pitch as everyone from last year’s cover model to Maroon 5′s Adam Levine has thrown out guesses as to which model will be in, and more importantly, ON the issue. Dan Patrick will announce this year’s models during the selection show airing tomorrow night (2/10) on DirecTV’s The 101 Network while David Letterman will announce the cover model on Valentine’s Day (Monday night). Even The Bachelor’s getting involved with Monday’s episode focusing on a photo shoot they did for the issue. Had enough? Well, get ready for more, as we take a look at the Twitpics of last year’s models in all their candid cuteness.