updated 11:45 am EDT, Mon April 19, 2010
Could add Mail, Contacts, Calendar links
Apple is planning deep Facebook integration for iPhone 4.0, evidence in the firmware is thought to show. A file displaying Mail account type options includes a reference to the social network, presumably so that its messages can be treated in the same manner as e-mail from the likes of Exchange and Gmail. Integration may extend throughout Apple apps however, as another file points to links with Contacts and Calendar.
iPhone users may, for instance, be able to populate Calendar with Facebook events, and Contacts with Facebook friends. A separate contact type is in fact said to exist for people on Facebook, which could theoretically be used to identify them as friends, rather than just another listing in the database. The completed iPhone 4.0 software is due in the summer, likely in tandem with the next iPhone.