It is very useful right now if you want to control 1 axis of a machine. You can use it to remotely move an OSSM/ Handy in real-time, record 1 axis scripts on the fly, and other things. The only multiaxis toys that I know of are the strokers from Tempest. However, I am going to add the IMU to this once I finish some other things that I am more interested in at the moment.
Except the recording must be done at the source, and i dont think a lot of porn creators will realy care. If you record someone using a fleshlight that tries to mimic it, its barely going to do anything as following movement is hard. Even if done in slow motion, a lot of mistakes will be made.
And that is already relying on it working perfectly. Something that experience says rarely happens. You are going to spend a lot of time clearing out noise from the scripts.
You might as well just try to record 1 axis at a time instead and then clear that info. Being just 1 axis should make that part easier to do causing less errors in the result.