Version: (using Devel)
Installed from: Compiled sources
I thought I'd share my idea as well, it's all about integrating the dialog into the panel.
please find rationale here: http://pollycoke.net/2009/03/21/«right-where-it-belongs»/
Created attachment 32320 [details]
add widgets dialog grid mockup
This has been implemented in KDE Plasma Desktop for KDE SC 4.4