Everything is connected in Ubisoft's Watch Dogs for the Sony PlayStation 4, PlayStation 3, Microsoft Xbox One, Xbox 360, Nintendo Wii U, and PC.  The E3 demo for the upcoming game gives a taste of several of protagonist Aiden Pearce's hacking skills and you can watch them all in this seven-minute video.  You'll see him use his phone to manipulate an advertising display to act as cover, trigger a car's security alarm to serve as a distraction, and blackout the entire city to aid in his getaway.  There's even some co-op functionality via tablets.  The Sony PlayStation Blog explains that feature.

There’s yet another layer of connectivity that will be available to you in Watch_Dogs: Co-op on mobile devices. When you’re calling for help, you are sending a request to friends who are connected to the Watch_Dogs universe through their mobile devices. When that request is accepted, a co-op experience starts and the goal for the two players is to survive from the police by escaping their pursuit.

I hope that the mobile aspect isn't too required because I'd hate to irritate friends with ongoing calls for help when they're in the middle of other activities or just not near their mobile devices.  On the flip side, it's not like I can dive into an assistance session and help someone else when I'm at the office.  There needs to be a way to make oneself available for assistance calls and then log off of the system when it's not convenient to help.  That said, Watch Dogs looks like a lot of fun and I look forward to playing it when it releases later this year.