In an interview with IT Wire, Mark Shuttleworth argues that all copyright assignment systems are equal, saying further that what Intel, Canonical and other for-profit companies ask for in the process are the same things asked for by Free Software non-profit organizations like the Free Software Foundation.
I've written about this before, and recently quit using Ubuntu in part because of Canonical's assignment policies (which are, as Mark correctly points out, not that different from other for-profit company's assignment forms.)