Here's a promo view of the Air Hawk inflatable saddle cover: http://www.youtube.com/watch?v=5G_yZLgF76c
I spent about 7 hours in the saddle today with the Air Hawk covering the stock seat on my FZ1. As any of you who've ridden the FZ1 know, the seat is not much more comfortable than a wooden bench upholstered in vinyl.
After 7 hours my ass was still feeling fresh as a daisy and I was good to ride for another 7 hours if need be. It was a hot day, I was sweating my *ahem* ass off and the Air Hawk kept me going longer than other people in my group.
Drawbacks are that the inflation makes you sit a little higher than normal on your bike. So my feet weren't touching down as firmly at stops as i was used to. And it's more difficult to move your ass off the seat and hang off if you're in to more aggressive sport biking.
But if you're in touring mode and gobbling up the big miles all day, I recommend this product to keep you from getting serious monkey butt.
They sell it at British/Italian in Vancouver.