** Dev.Opera: [http://dev.opera.com/articles/view/opera-mobile-emulator-experimental-webkit-prefix-support/ Opera Mobile Emulator build with experimental WebKit prefix support] - has list of -webkit- properties Opera has decided to support so far.
** WebMonkey: [http://www.webmonkey.com/2012/04/opera-forges-ahead-with-plan-to-support-webkit-prefixes/ Opera Forges Ahead With Plan to Support WebKit Prefixes]
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* 2012-06-04
** mozilla.dev.platform: [https://groups.google.com/forum/?fromgroups#!topic/mozilla.dev.platform/itl6mtx2dxI Policy for experimental CSS features in Gecko] - proposal by David Baron
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