Hey. I'm getting a Droid soon and I just wanna ask: What's the difference between a Widget and an app? I ask this because when I get it, I wanna replicate the Eris' screen with the weather and clock. I've seen in the screenshots thread here somewhere that people could do that. But some said that was a widget, and some said it was an app. So which is it? And can I have a link to it?