I'm surprised this didn't happen earlier. In corporate land, there have been two server OSs for the last five years: Windows Server and Red Hat Enterprise Linux. Sure there might be the old HPUX or Sun box waiting to be retired, but it's not going to be replaced with something else. SLES often only exists as a bargaining tool with Red Hat support.

It's a pretty solid reminder to all those that claim there is no money to be made in open source and that it is somehow 'communist' to be doing so.