An NPR piece confirmed this addition to the Facebook empire. The new feature will also include an in-depth history of communication of each friend, organized per person, Mark Zuckerberg said on the Facebook blog. He also said:
Today’s invite-only press conference hosted by Facebook’s Mark Zuckerberg might announce the rumored Facebook e-mail service, AKA “Gmail killer,” according to an NPR story.
TechCrunch wrote about something called “Project Titan” back in February, detailing the service’s accessibility outside of Facebook itself. According to the piece, e-mail addresses will be a “vanity url” before the web domain; meaning, your address ought to look something like firstname.lastname@example.org.
TechCrunch also speculated the client’s potentially keen ability of prioritizing your e-mails based on your social connections from Facebook by judging how close you are to the sender.