Leave Skype alone... it became bad enough since the last good version (3.8)! If Facebook or Google get involved, things are gonna get even worse... Skype will keep offering us to find more friends or to install useless apps for answering questions about each other
I would be glad if there was more cooperation between different IM and VoIP providers, but in no way if the price (for the consumer) is less competition and more control of one big corporation over the service.