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I wish most projects would use familiar licenses, instead of creating the license hell which already includes GPL compatible licenses, non GPL compatible licenses, apache style licenses, BSD/MIT licenses, private licenses (each company “must” have it’s own license) and a few others as categorized at http://www.opensource.org/licenses/category . And of course – dual or triple licensing which for most people doesn’t make their life easier. See how many licenses there are to compare: http://en.wikipedia.org/wiki/Comparison_of_free_software_licenses
Sun’s re-licensing is a step forward for a simpler life for the xorg project. It’s usually hard enough to make sure you track all the copyright info of files in a project, and having a different license to each file just makes things harder.
This isn’t the first time Sun helps to solve a licensing issue. It began in 2005 with retiring the Sun Industry Standards Source License (SISSL) which led to remove Openoffice.org dual license. It continued (2005) to solving some license issues with Java that we couldn’t even have it in Debian’s non-free
In 2007 Sun started releasing most of java in GPL to help OpenJDK and IcedTea which now makes java available in main (lets not forget that there were a few free software projects already half way through like gcj, GNU classpath and others).
So – Thank you Sun for helping free software. I think that resolving licensing issues are very important for free software community, and for Sun itself by using free software. It’s specially important to fix such issues if and before the company changes owners.