The explosion effect is really cute, until you realize that it is exploding popup menus, notifications, the little X buttons in the present windows effect, and the overlay in the QML alt-tab switcher. The explosion effect should only operate on normal windows, dialog windows, etc and not the psuedo-windows like it currently does. Reproducible: Always
Just for the info: it's unlikely that this will get implemented. Feel free to work on it yourself, but I would rather drop the effect than extend it.
this bug is still present in KDE 4.10 RC1. (Intel SB, Kubuntu Raring) at the same time, also this bug https://bugs.kde.org/show_bug.cgi?id=267954 is present. I strongly suggest to remove this fancy effect before final release as it is plain broken and makes the desktop unusable. Have nice holidays, 4.10 is cool :)
Created attachment 75998 [details] tooltip explosion
*** This bug has been marked as a duplicate of bug 312176 ***