No I'm not posting from my Droid (though I probably could), I'm posting about my Droid. This is actually a piece of advice to anyone that owns a Droid or is thinking about getting one.
In my opinion, the very first thing you should do when you get a Droid (after re-learning how to answer the phone and turn the device on and off) is sign up at AppBrain. It's free. (Oh, and I don't get anything for "advertising" it.)
AppBrain is the Droid App Marketplace, only with a user friendly interface. Also, there are some great Droid power users on AppBrain, and you can follow them. Yeah, kind of like Twitter, except there are no tweets. You can just see what apps they're using. I'd recommend following Gina Trapani. I've found a lot of good apps by following her. (She was a founding editor of Lifehacker, so no surprise that she's one of the most followed people on AppBrain.)
Back to AppBrain. You can install apps to your phone directly from the website. You can let people see what apps you have (or keep them private). You can find out what apps are the most popular by country, gender, or age.