So, if anyone's on the fence about the JH13s, the raves aren't exaggerations. They may not be perfect, but they don't have anything I'd call a flaw at this point. PRaT is amazing, bass quality and impact, detail, tone, you name it. I'm bouncing around to music that isn't even particularly bouncy.
I don't see any reason to expect there would be a way to tether the ipad with an iPhone. If you want to tether instead of getting a 3g ipad, you'll have to either get something like a mifi, or hack something to allow wifi tethering.
I got really frustrated using my netbook. I've gotten to where I'd only use it when travelling or in a pinch. The ipad is way more appealing to me at this point than going back to my netbook. We'll see how I feel June 3 (after 60 days of use)
Mine came in this morning. Fit seems to be good, they're comfortable and sound right. I'll see if they get irritating over time. As of now, I'm pretty darn happy.