Yes, I'm running it. I was lucky enough to be online when the app store launched. It was a link under music and I downloaded it. The next day they removed the link because of the software problems. I disabled compatibility and it worked. I found the link online in the app store are of the blackberry site, but it was removed now I see it's back up. Shazaming a song works exactly like it does on the iPhone, but the other icons on the screen for forwarding, deleting, etc are not working. My guess is they are fixing it so they can relaunch and everything will work. I'm very very pleased though; the copy I downloaded at least song id works just fine. Not perfect, because of the program icons that don't work, but good enough till the updated version is released. I've already used it about 15 times in the last few days.
The link is still in the store here: BlackBerry - Featured Apps