[patrickaljord]

This is exactly about Skype, Yahoo and others. Only a handful geeks and sysadmins use Gtalk as an XMPP relay to talk to. Losing these few edge cases has no impact at all on Google, however, MS and Yahoo being able to have an unfair advantage does have impact on Google (and by unfair advantage, I mean MS and Yahoo being able to talk to Gtalk but Gtalk not being able to talk to Skype and Yahoo Messenger).