It seems the only way to choose images from the gallery is to use the thickbox_image option since the plupload_image only uploads directly from your computer.
But the thickbox option only allows 1 upload at a time. A big pain. And it no longer has the "insert multiple images" checkbox option any more (like the Faster Image Insert plugin).
So the question is: Either how can I make it so that the thickbox option can do both multiple uploads at once and also choose which multiples to insert OR are you planning on including that for the next release?