I think the technology is really interesting, and the people who came up with it get lots of geek points with me. I'm curious how the system knows the rotation speed of the wheel so that the image works at all speeds.

But I see the following problems:

1. The distraction quotient for other drivers on the road would be so high, I expect that municipalities will quickly outlaw it.

2. It would be the ultimate theft target, and since it's mounted where it's so easy to get to, those things wouldn't last unless you hired an armed guard for every place you parked it.

Still, very cool piece of tech.