She’s a partner at a big law firm married to another partner. Vivia Chen examines the dynamics of the power couple

It’s a cold February morning in Brooklyn Heights, New York, and the Seymours are huddled under the duvet, each clicking on his-and-her BlackBerrys. Across the bridge, the DeMasis are in the kitchen of their Upper West Side Manhattan apartment, eyes also fixed on their incoming email messages, as their kids clamour for Cheerios. Halfway across the country, on a leafy street in Houston, the Rodriguezes are getting their daughters ready for school as they – you guessed it – toy with their BlackBerrys.