Kubuntu 9.10 Alpha 3 の概要にこんなことが書いてあった。

Kubuntu 9.10 Alpha 3 will include Arora, a lightweight and fast webkit-based web browser. Konqueror is not compatible with many popular websites, so we are considering arora as our default browser in order to try to provide one that more of our users will find satisfactory. Konqueror is still installed, but in Alpha 3, arora is set as the default.

Arora は QtWebKit を使っていて、UI は…… Firefox とよく似ている、気がする。