1) DragBox doesn't work on a textbox. This seems reasonable, although you can sort of click on the border without the textbox getting focus for editing so it seems like it might work. EDIT: Also, if you disable the textbox you can drag it, so I think this is probably okay.
2) If textbox has pin behavior and sprite has dragdrop behavior and you pin textbox to sprite, drag works, but textbox wiggles around rather than being pinned securely in place.
3) If the sprite has both pin and dragdrop behavior and sprite is pinned to textbox, the sprite doesn't drag. This may be as intended, I'm just not sure.
4) Even though the textboxes have the default height (22) they are resized bigger when run. I've noticed that text resizes, but usually it gets smaller, not bigger.