How to select multiple app icons in Launchpad to move them?

This kind of operation doesn't seem to be available. Based on how the interaction between the waggling icons and the gui is, I don't even think it would be possible with a reasonable usability.

Apple has chosen to reproduce the same feel as it is on iOS devices so that everybody familiar with that - extremely easy, btw - workflow can achieve the same in Lion.

Multiple selection is not implemented in LaunchPad. A work around: Drag individual icons into a folder (to make the first folder drag an icon over another and drop). Then move the folder to the new location and unpack it.