Is one-click calling via Skype from inside Facebook about to happen? Mike Melanson seems to think so:
Last September, news broke that Facebook and VoIP service Skype were about to announce a "deep integration partnership" that would bring integration of SMS and voice chat. A couple weeks later, we got Skype 5.0, which included an integrated Facebook phonebook and browsing, but we asked when we would see the opposite - Skype integration on Facebook.
via readwriteweb.com