I'm getting more and more inspired to build the hybrid Aprilia chassis + Kawasaki 500 triple engine machine. I've been riding around a friends Suzuki Vstrom 650 and having a bike for running errands and quick rides to visit friends is really really nice. My Aprilia MilleR is just too much of a race bike to ride all the time for just such tasks now. Having a Tuono style Aprilia would be just the right solution. The riding position would be just the answer for a scooter that I could jump on and ride with my tennis shoes.
Here are a couple of Aprilia Mille bikes converted to Tuono status which is basically what I would be building. A streetfighter / nakid bike from all my left over Mille parts! But of course it would have the 2 stroke 500cc triple powering it.