Applet Browser in libplasma
The Plasma Applet Browser is now integrated into the libplasma and it will be available in the next Beta that is going to be published on Wednesday.
I’ve replaced the old drag-and-drop with a bit fancier stuff - now (as you can see in the screenshot) when you drag the plasmoids, you will be shown only the icons (possibly will be replaced by screenshots of plasmoids) not the whole “blue bars” you saw last time.
Will Gallium3D use LLVM?", the short answer is "yes, it will".