
The company has invited the press to a "significant" announcement on Monday, where it will unveil an alelged "Gmail killer."
An analyst with Gartner said this: "There is a huge opportunity for these guys to fundamentally change the nature of e-mail."
The analyst says the Facebook system could likely prioritize emails based on closeness to the sender, or make email exchanges into a conversation between a number of users, turning the "dinosaur" that is email into a social service.
We will be reporting on the situation on Monday.