In an email to the WebKit development mailing list[1] Håkon Wium Lie, the Opera CTO, mentioned that they've had engineers working on WebKit for a while now, and

In an email to the WebKit development mailing list[1] Håkon Wium Lie, the Opera CTO, mentioned that they've had engineers working on WebKit for a while now, and they'll soon be contributing their work on multi-column layout to the WebKit project. [1]: https://lists.webkit.org/pipermail/webkit-dev/2013-February/023820.html https://lists.webkit.org/pipermail/webkit-dev/2013-February/...