This is only my second time to attend the Paris Air Show -- it was exhausting but also exhilarating!
E-Fan -- all electric aircraft -- was getting a lot of attention from the crowd. I think actually it is incredibly cool if they succeed this summer in their attempt to cross the English Channel from Lydd to Calais, reversing Blériot's historic feat.
Electric powred traniner is interesting , though 1-hour is rather short endurance - just enough for circle traffic pattern and few touch and gos. Today majority of small airplanes are flying with 100LL lead aviation gasoline and of course there is environmental concern. Several companies are working on alternative power source - automobile gasoline, metanol or diesel. Maybe it is time to consider electric too.