Seriously. It’s addictive. You can’t look away. It’s so…so…fast. And that may be the problem. Usability is tough. It’s fun, but is it useful? I’ve been watching my friends feeds fly by for about 5 minutes and it’s hard to track where everything is coming from and how the comments and posts all relate to each other. It’s most useful for a Room or if you’ve got fewer friends you’re following. All in all, it’s a ton of fun–if you can handle the fire hose. Here’s a slower feed of just my friends (no friends of friends included–Scoble makes that feed unusable).