From the inventors of radial tires!
http://www.metacafe.com/watch/51120/airless_wheel_video/ for the video these stills originated fromThe bad news for law enforcement is that spike strips will not work on these tires.
This is what great R&D will do, and just think of the impact on existing technology:
a. no more air valves
a. no more air valves
b. no more air compressors at gas stations
c. no more repair kits