title: Good examples of in-app tours/tutorials/walkthroughs on Android or iPhone
body: <p>For my Android app, I currently provide users with an introductory tutorial on a separate Web page. It includes screenshots and is easy to read, but it's still a separate document that is best read on a full-fledged computer. I'd like to integrate these instructions into an in-app tour/tutorial that steps new users through the functionality. I'm thinking a series of pop-up alerts or bubbles with arrows to point out different parts of the interface.</p>
  
  <p>A general question: Are there any Android and/or iPhone apps that you can recommend as nice examples to look at?</p>
  
  <p>A specific question: What sort of UI components would be best to use in Android? Toast's and AlertDialog's are kind of ugly. Perhaps I should somehow skin a Dialog?</p>