What do you think of the TRX RIP Trainer? Here’s a link to it: http://www.trxtraining.com/products/trx-rip-trainer-basic-kit
It’s a good idea but it is also a lot a money for tubing on a stick. Also not quite as new as indicated: I am sure that many of us have been using tubing as dynamic resistance for rotational movement. Attaching the stick is a nice addition, though.