I'm with Tandemgeek on this one, though I can't fault someone for liking novelty. Maybe better to learn how to adjust your shifters so its no longer a problem. I find bar end shifters on my tandem work just fine - indexed for the rear and non-indexed for the front derailleurs to be pretty fool proof. I was having a problem where I couldn't seem to adjust the rear derailleur for the middle gears and after replacing it, the problem went away.
But, if racers ever adopt electric shifters, everyone is going to have to have it...