I got to spend about 30 minutes on an electronic shift equipped roadrace bike.
I normally ride DuraAce and think it's pretty spiffy - this electronic system makes my bikes feel sloppy.
Instant push button shifts.
Uphill full stormin - shift the big rings, or the little rings. NOW. No hesitation.
Automatic trim adjust - you got the bike all crossed up, no problem, it'll sort it out for you.
Weighs something like 41 grams more than normal shift kit, but there's no weight anywhere except down in the center of the bike.
Apparently not on the market. Gonna be unobtanium for awhile.
Hincapie and Garmin will be racing it this season.
Cool beans for you techies.