Kawasaki proved that a production supercharger was practical in the real world.
Suzuki will probably be next.
With all the clean air restrictions on internal combustion engines, supercharging/turbo charging is becoming the last refuge for performance.
However, packaging is everything, and getting 100+ hp out of a lightweight 600 or 700 twin sounds great.
You can see from the H2 and the concept drawings of the Suzuki just how complex it will be to work on these new designs.
They have to cram 10 lbs of sh** into a 5 lb sack.
I hope the boys at Donington publish some concept drawings the supercharged 650 soon.