Well, the combination of su and Superuser.apk isn't working correctly at the moment (it's hanging), so I did something
wrong when I installed it. I guess double-check my installation description if you use it. I think I'm taking a short break from watching my Vox reset, though, and using it to read some books.
OK, I just sat down to try and figure out what was wrong and root appears to be working as intended. Maybe I just needed to reboot or something. Or maybe I just needed my caffeine to kick in.