QuakerProf, I was perusing some of the Alfine technical docs, and this one indicates that you can mount a rack straight to the Alfine axle. So either the Axiom streamliner or the Tubus extender will work, although you might have to drill out the mounting eyelet on the rack to get it to fit over your axle. The downside to mounting a rack directly to the axle is that it'll be a pain whenever you need to remove the rear wheel, although I hear that this is already a pain when dealing with IGHs. Also, this setup wouldn't work with the Topeak Supertourist DX, which you mentioned earlier, on account of the bolt wells being too deep and narrow to accept the securing bolts for the Alfine:


I think that when the Kona rep mentioned "dropout bolts", he was referring to the two upper bolts which secure the sliding dropout to the frame. And, if you want to wait on the rack issue, I'll tell you whether or not it works. I just ordered a new frame with the same dropout setup, an Alfine hub, and a Tubus rack with an extender (to get around my disc brake) that I'm planning to mount to the sliding dropout bolts. Between shipping and build time, it should be ready in a couple of weeks, after which I'll post pics here.