Today I finally updated my machine to openSUSE 11.1 beta6 (was still running plain beta5 before). Then I started to wonder what this small red icon in the lower right corner of Konqueror (KDE 4) could be.
Clicking on it, it popped up an adblock dialog, listing all the blockable items on the current site and showing if they are already blocked or not. It also allows to add items to the block list.
Basically that's functionality that's present in Firefox extensions since years, but it is nice to finally see it also implemented in my favorite browser.
Thanks, KDE team!