How will rivals respond to Microsoft Buying Skype?

When eBay bought Skype in 2005, Microsoft, Yahoo!, Google and AOL all added talent, bought technologies and beefed up their messenger products. Six years? later, how will Microsoft?s rivals respond to Microsoft buying Skype? Apple. FaceTime gets more headcount, gets group video, comes out on Windows, distributed with QuickTime and iTunes. Maybe by WWDC. [...]