Here it is - the first widely distributed prerelease of the upcoming version of Microsoft Dynamics AX 2009.
It's available for download from PartnerSource (requires a PartnerSource login).
One of the many exciting new features is the Role centers and the new integration with Microsoft Project Server. I'm personally really looking forward to getting my hands on this CTP3 and experiencing many of the new features which this upcoming version has to offer.
You can find a comprehensive description of the features in the Dynamics AX 2009 on PartnerSource from the What's New in Dynamics AX 2009 (requires a PartnerSource login).
Hope you find the CTP3 as exciting as I do.