Here is the press release for Windows Server 2008 RTM and you can find more about Windows Server 2008 here.
As you may know, the great thing about this combined release is that Windows Server 2008 and Windows Vista SP1 share a large portion of their code base. This makes the desktop and the server operating systems more consistent when it comes to common features like security and networking. This is exciting news for developers as in the past; we had to deal with the difference in the behaviour of some of the components like IIS in the desktop OS (IIS 5.1 in Windows XP) and the server OS (IIS 6.0 in Windows Server 2008). Windows Vista and Windows Server 2008 are much closer in terms of their code base and behaviour and the combined release of Windows Vista SP1 and Windows Server 2008 brings them even closer to each other.
At the time of this writing, the following editions are available to MSDN Subscribers for download:
- Windows Server 2008 Standard (x64)
- Windows Server 2008 Enterprise (x64)
- Windows Server 2008 Datacenter (x64)
Please note that these editions come with the beta version of Hyper-V and can be updated when Hyper-V is released later in the year.
And the following editions will be coming soon:
- Windows Server 2008 Standard (x86)
- Windows Server 2008 Enterprise (x86)
- Windows Server 2008 Datacenter (x86)
- Windows Web Server 2008 (x86, x64)
- Windows Server 2008 for Itanium-Based Systems
- Windows Server 2008 Standard without Hyper-V (x86, x64)
- Windows Server 2008 Enterprise without Hyper-V (x86, x64)
- Windows Server 2008 Datacenter without Hyper-V (x86, x64)
More information on Windows Server 2008 editions.
Although the SP1 for Windows Vista has reached the RTM milestone, the broad release of Windows Vista SP1 is currently scheduled for mid-March. This will allow the hardware vendors to address the issues with their device drivers before SP1 is broadly released to the customers. You can read more about the release for Windows Vista SP1 here.
Update 1 (10 Feb 2008): Windows Web Server 2008 (x86, x64) and Windows Server 2008 Datacenter, Enterprise and Standard (x86) are now available for download via MSDN Subscriber Downloads.
Update 2 (14 Feb 2008): All editions mentioned in the above list can now be downloaded from the MSDN Subscriber Downloads.