I got this yesterday by email and wanted to pass it along
PRACE, the Partnership for Advanced Computing in Europe, invites researchers from academia and industry to test applications on prototypes of potential future HPC Petascale systems. PRACE partners have installed six systems of different architectures that are now available for assessment.
The first call of 2010 for prototype application is now open! The application deadline for the first call of 2010 is January 30 for decisions on February 15.
More information: http://www.prace-project.eu/prototype-access