I went through 3 sets of Moto S9's in a 4 month period a couple of years ago. Their downfall was that the advertised "sweat resistance" really wasn't true. I used them while running and working out at the gym and the same thing happened to all three sets I had: I'd sweat on them a couple of times and then the buttons would fry resulting in random fast forwards/song switching until they dried out (took days sometimes) and then they'd eventually stop working. Thankfully, I was able to get my money back.
After that debacle, I switched to the Jaybird JB-200's (now called the Jaybird JB200 Freedom). I can say that these things are truly sweat-resistant/proof. I've used them running, at the gym and cycling for the last couple of years. These rock. I traded message board posts with a guy that even uses them in the shower.
I have no problems recommending these to everyone. The new Bluebuds look great, but if you don't want to wait and want to get a bluetooth stereo headset that just works now...then the JB200 Freedoms are it.
That being said, there is a weird quirk with how they interact with the Incredible: I can control pause and volume up/down with no problems. I'm not able to switch between songs in the playlist like I used to be able to with my old Blackberry Curve. I've tried long/short/double presses, but that just seems to change my volume levels.
From a cycling perspective (and this will sound weird to the audiophiles in the group), one of the best things about this headset is that it's NOT sound isolating. That means you can hear cars/other riders around you while you cycle. It is possible to jack the sound up so loud that you can't hear anything but the music...but that's just not a good thing to do while cycling. As you can see by the pictures, they're designed to go over your ears, but the ear bud doesn't fill your ear canal completely...they sort of sit just inside/just outside of it depending on how you look at it and how your ears are shaped. That means that there can be a fair amount of wind noise to compensate for. The JB200's are plenty loud to counteract the wind noise, though and still let you hear what's going on around you.
These are not for audiophiles, though. From what I've read and my own experience, no stereo bluetooth headsets are. I would say they have "typical lack of bass" issues as most earbuds do. But they're good enough...I use them because they're wireless, sweat/moisture resistant and because they don't come off unless I take them off regardless of the activity I'm doing.
I also use the arm band that came with the Moto S9's (thanks to TigerDirect for letting me keep it) if I run, go to the gym or do yardwork. That works pretty well. One more thing for the cyclists out there: while cycling, I normally keep my Incredible in a Ziplock Snack-sized baggie which protects the device from any sweat or rain that may fall on it. I usually keep the phone in my top tube bag (the kind that velcros around the top tube and the stem). I used that set up for a couple of years even with my old Blackberry Curve. Works great. I can still interact with the screen through the baggie...which is way better than how I couldn't work with my Curve's trackball back in the day. One additional advantage of keeping it in the top tube bag is that it keeps the Inc closer to my JB200's than if I were to put it in my back cycling jersey pocket. That's really a good thing because there's almost zero interference and it keeps the connection really strong/uninterrupted. My old Curve was a bit more sensitive and would drop the connection briefly if I turned my head to the right (which, to me means that the antennae is in the right earbud). That really doesn't happen with my Incredible.
A2DP bluetooth can be a bit finnicky when using them outside...at least it was with my Curve. I can say that it's been much more solid/uninterrupted connection with my Droid Incredible. Which rocks!