Iskoot buys facebook social.im tool, hence more linkability for Skype (over Iskoot). Not necessarily more privacy and security.

ISkoot Acquires Facebook Chat Tool Social.IM
The acquisition could enable wireless and wireline users of VoIP services like Skype to consolidate and grow their social networking applications.

My take : more insecurity, more privacy issues also. Maybe good, maybe not. " VoIP wireless provider iSkoot reported Friday that it has acquired social networking instant messaging software provider Social.IM. The acquisition could enable wireless and wireline users of VoIP services like Skype to consolidate and grow their social networking applications. Financial terms of the deal were not disclosed."