Skype may shutdown due to the to spat between eBay and Skype founders who are unwilling to license the P2P technology to eBay.
First, how stupid is it that after paying billions eBay did not actually acquire the license rights for a key piece of technology on what their platform runs on.
Second, if you know that you need to negotiate with someone in future do not screw them over. Haven’t these people heard of the iterated prisoner’s dilemma?
As to who will benefit, I think this would be a golden opportunity for Google Voice to try and rollout to as many countries as possible, as well as really push hard for Google Chat. I think if Gogle can roll out a quick stand alone Google Chat application they could significantly gain market share.