Ebay has announced its changes to third party checkout today i would like to make this clear to all sellers they would not be removing third checkout ,they have asked third party vendors to make changes to there checkout so it resembles ebay checkout .To read more checkout this update from ebay .

To reiterate, Ebay is not eliminating third party checkout on June 15, they are only asking third-party checkout providers to update the user interface.

http://www2.ebay.com/aw/core/200904.shtml#2009-04-15125710