Reading some of these post makes me wonder why anyone would try to install this service pack (other than in a Dev site) three days after it's released in any production environment. It would also be helpful if you read the documentation before trying. Common sense dictates waiting a few months unless there is some new feature in SPK2 you can't live without or need to fix problem that can't be resolved any other way. Maybe it's just me or I need another cup of coffee.

Like he said.  Go have a Starbucks.  Hold back.  Test.  You don't need it RIGHT THIS MOMENT.