Don't get me wrong, I'm happy that the "January incident" is fixed, but giving this latest build the identity of SP3 leaves the original SP3 build of 20071109_2345 lost to history. I celebrated that build because of the things it fixed and because it was the first time that I didn't have to wait for the MEP release to be posted. If you saw my blog on November 19th, you'll remember the party that was thrown!
Nevertheless, the "Failed to open document" error is no more with the latest release, so create your deployments and announce them to your users. Now get back to work!