G Commercial, Lil Wayne, USC Trojans, and the Rose Bowl

The News Junkie is also a football junkie, and proud of it, but I was left, after the Rose Bowl today, with a couple of real head-scratchers:

1: What's with the "G" commercial with Lil Wayne? Whose ad is that anyway? What did it mean?

2: How can Mark Sanchez read a defense so well, and would the result of the game have been different if a fifth quarter had been added? I only ask because the first half belonged to SC, but the second half, up until that last interception, belonged to Joe Pa's crew. I think that big "I" only happened because time was so short that the Nittany Lions' QB threw instead of allowing a sack (he was clobbered just as he threw). So I ask, only a little rhetorically, does anyone else think that if time hadn't been so short, the Nittany Lions might have caught up? I sure think so.