I was reading this link and while it sounds interesting, I also got the feeling that it was reading in between the lines as "hybrids are crap, my idea is better so why hasn't anyone licensed my patent and made the world a better place (with me at the top of a money pile)".

Two climate control systems, one inside and the other at the tailpipe.

2007 Camry Hybrid (in service June 2006)
Distance: 36187km (22486mi) over 24 mths (ave trip 20 min)
FE: 6.80L/100km (34.6 mpg)
Dealer repairs reqd: none to date