Although most corporate environments running BlackBerry Enterprise Server 5.0 have most likely already got Service Pack 1 according to Crackberry, Research In Motion has made BlackBerry Enterprise Server 5.0 Service Pack 1 generally available.
So, if you have been holding off for one reason or another there is no reason why you can’t head on over to the Research In Motion download website and download a copy of BlackBerry Enterprise Server Service Pack 1 for Microsoft Exchange and IBM Lotus Domino.
The word is that Research In Motion has as always updated their knowledge base articles to reflect all the changes and features in BlackBerry Enterprise Server 5.0 Service Pack 1, so if you need to update now is the time to go grab it.