Normal Wireless Access Impact on Social Interaction

This is an article discussing the impact that wireless internet access has on people in public spaces, especially in parks.  Uptown Normal has wireless access. Has it reduced social interactions? Are more people focused on their electronic gadgets instead of talking to others? People who work in the Uptown businesses would probably be the ones to notice any change from how it used to be. Maybe students and others always brought projects to work on while eating lunch or having coffee, which would mean that wireless access really hasn't had much of an impact on social interaction. On the other hand, perhaps people are less likely to start a conversation with someone who is working on a digital device instead of reading or doing paperwork.