ViennaCL is part of the "Computational Science and Engineering at TU Wien" project of the Google Summer of Code 2011. If you with to contribute, check out http://www.iue.tuwien.ac.at/cse/ideas.html and
http://www.google-melange.com/gsoc/program/accepted_orgs/google/gsoc2011
Deadline for application is April 8th, 2011.