October 2, 2011
Recently in the Plasma mailing list, KDE developers have discussed a new screen-locking implementation that could be added to the upcoming 4.8 release of the KDE Workspaces. The first reason to do so was to solve some security constraints of the existing implementation. As an added bonus, screen locking should be also more aestetically pleasing.
There is however a trade-off: such implementation would mean that screensavers that rely on X (also called X screensavers) would not be compatible.