The best part about it is the surprise song, Anyone Else But You, sung by the movie's stars, Michael Cera and Ellen Page. What a well cast movie. I just want to eat up Michael Cera's character. It goes without saying that Ellen Page was just amazing on so many levels.
You can totally get the Juno CD at Amazon. I had to get it at Barnes and Noble b/c I don't know if iTunes carries soundtracks. Same with Cat Steven's Teaser.
Watch the Juno trailer: