Why Do All Offices Look Like Coffee Shops Now?

As I sit here sipping coffee at Starbucks, I can't help notice a sea of serious faces partially hidden behind laptops. Some have little headphones stuck in their ears - are they listening to music or on a call, I can't say for certain. As more of these coffee shops are becoming 'offices', I notice a number of offices (including ours) are beginning to resemble coffee shops. Is this a manifestation of the new culture of work-life integration?