Marissa Mayer just gave every Yahoo employee an iPhone 5

New Yahoo CEO Marissa Mayer just sent an email to all of Yahoo's full time and part time employees in the US, promising them a new Apple, Samsung, Nokia, or HTC smartphone.

"People are happy," says a source at the company.

A couple weeks ago, we reported that new Yahoo CEO Marissa Mayer was considering giving every Yahoo employee a new iPhone or Android smartphone.

Mayer has now put that plan into motion through a program Yahoo is calling "Yahoo! Smart Phones, Smart Fun!"