Ubisoft has a neat little Watch Dogs-flavored video for your perusal. The clip is from an outside perspective, assessing the threat level of the game's anti-hero Aiden Pearce. Specifically, it focuses on the surveillance of Pearce during a typical in-game mission.
I really hope this big-brother shtick doesn't get old like ten hours into the experience. I mean, we get it -- everyone is watching. Really, it will all depend on how varied the gameplay is, and if Ubisoft can keep ramping up new and exciting ways to hack, rather than just using two to three mechanics over and over.