It feels like we've been waiting for a big new version of Android forever; Jelly Bean is great, but it could do so much more. Surprise: it actually does! All you have to do is take matters into your own hands.
Fandroids will tell you—loudly and at length—that one of the best features of Android is openness. Not only does Google allow third-party developers to reach further down into Android than they can into iOS, but rooting your device opens up a whole new world of possibilities, whether you want to do it or not. It's equal parts empowering and a pain in the ass.