will be a long story
I think that it will be long time for the deal Yahoo/Microsoft!!! I am a domainer and personaly I do not like Yahoo so much too. Did anyone here got domain registration with Yahoo? They just increase domain renewal price from about $12 to over $30. This price will be applied in July. This makes domainers to be crazy and many of them transfer domain names out to Godaddy.com or LuckyRegister.com... If Microsoft takes Yahoo, this may not happen since Microsoft is more professional than Yahoo for this field.