For open source software the clause I found most odd was "10.2 You may not (and you may not permit anyone else to) copy, modify, create a derivative work of, reverse engineer, decompile or otherwise attempt to extract the source code of the Software or any part thereof, unless this is expressly permitted or required by law, or unless you have been specifically told that you may do so by Google, in writing."<p>The incompatibility of this is covered by clause 1.2, ". . . Open source software licences for Google Chrome source code constitute separate written agreements. To the limited extent that the open source software licences expressly supersede these Universal Terms, the open source licences govern your agreement with Google . . ."<p>It's still odd though.