Now the multi-tasking really begins: New Yahoo CEO Marissa Mayer has given birth to a baby boy and still plans to keep working from home, reports the Wall Street Journal. "Baby boy Bogue born last night," husband Zachary Bogue tweeted. "Mom ... and baby are doing great—we couldn't be more excited!" A Yahoo rep says Mayer will "return to the office as soon as possible, likely in 1-2 weeks." Her quickie maternity leave has left one German official upset, but she's been juggling her duties thus far, remodeling Yahoo's offices and giving all workers a brand new smartphone.