Do the 08's have these issues with throttle smoothness? or was this a characteristic particular to certain model years?
I didn't see anyone answer LC Joe's question so I will. I have an 08 and it does have a sharp on/off throttle response. I can't say it's any better or worse than previous year models. In most riding situations it's not a problem, but it can make stepping through the gears a bit choppy. The area where it is a real problem is when you're exiting a tight turn and you're looking for that stablizing accelaration but instead the bike balks at your throttle request - very frustrating.
Like Bokerfork, I've managed to work with it but I don't change my shifting practices, but I keep the revs up when I'm running the back roads so I'm probably working it in similar fashion. I blip my throttle a bit before getting off the clutch; its' similar to engine breaking situations where you're trying to match engine and wheel speed but not as aggressive. I'm not advocating this as fix, it is a problem and it is dangerous.