Ya, that is a sweet set up as well, and in theory you can re-cover the energy.
Whats is also nice about the Bose system, is that it shows it can be done in a rolling proof of concept.
The only issue I know of with the linear system is high un-sprung weight.
But maybe can be over come using suspension geo.
I always wanted them to make a hi-stress demo, and rally or off road vehicle, and I know two people that approached them with no luck
Just one problem, people are going to run feedback from there Bose audio system back into it, and have dancing car contests
