This is interesting. Such tyres have been discussed before, especially for peopel who commute trough glass and stuff a lot and also for peopel who just can not deal with a puncture. Funny thing is that mentioning such tyres can bring peopel to serious anger and demanding to know how we can recomend peopel to spend theyr "hard earned money" (what is is with americans and this "hard earned money" thing?) on something like that. I am sure such tyres are made better and better and for some peopel they are a great solution to a serious problem. Report back!