Yep. There is a piccie floating around of the tug Jack knifed under the aeroplane.
Word from QF engineering is that the nose gear assembly will definitely need replacing and the mains may need replacing due to the torsional stresses put on the main gear during the Jack knife. That may be QF engineering scuttlebutt though so not sure if the reality.
Just last week I watched a J* tug quite literally hoon around taxiway Tango at the end of the Charlie pier and was very surprised at the speed they were going with an A320 attached. I thought it was the capability of the tug but it appears it may have been more a cultural issue. (There's that word again).
I'll see if I can link the picture somehow. Just need to tidy up a few things.