Microsoft Project Professional 2010 and Microsoft Project Server 2010 are all available for download as part of the 2010 Public Beta availability (alongside SharePoint 2010 and Office 2010 applications):
repost from christophe blog
http://www.microsoft.com/project/2010

Public Beta is available for the following languages: Chinese (Simplified), English, French, German, Japanese, Russian and Spanish

ProjectPro2010_bL_r
image
239 MB

Project-Svr10_h_rgb
image
22 MB, and remember you need to install SharePoint Enterprise 2010

ShrPt-Svr10_h_rgb_r
image
561 MB

Please get the bits and test it out but read carefully the expectations from a deployment point of view, read up on TechNet about Public Beta limitations: http://technet.microsoft.com/en-us/library/ee662496(office.14).aspx