Yo launched to a thousand cries of people lamenting its uselessness. Now, the application that’s raised $1.5 million in funding is finally making itself useful. The company launched the Yo Store on ...

Yo. The greeting you use when "hello" is too polysyllabic and "hey" is too many characters is now a messaging app worth $1 million, according to the investors who backed it. And as it enjoys its ...