Interesting solution, though it is definitely a sub-optimal solution compared to HIDs. Mainly because it's a pity that it doesn't really work as far as providing the true benefit of dual headlight output, but I can see why one would do it. And the cyclop look definitely annoys me.
Thinking about it...instead of paying full price, one easy way to do that would simply be using a tiny
PWM Controller and a 99 cent 5-pin relay. Plus it would be adjustable. The PWM controller simply turns the bulb on and off a few hundred times a second, so it would work perfectly with halogen bulbs. And it works at up to 10amps (a 55w bulb is about 5 amps). I almost feel like doing it as an interesting project. Plus, it's pretty trivial to wire up - it's probably easier to wire than it is to remove the fairings. I don't really think it's the ideal solution at all, but hey, at least it makes for a cool mod.