OK, you've downloaded the SDK and are now ready to build the next killer app for mobile (and maybe win some $$$ in the process ;)
Activities? Intents? SimpleCursorAdapter? Huh? Hmm...how do I proceed?
Well, that depends on your style. Some will want to carefully go through all the documentation top-to-bottom, while others may prefer to just dive right into code.
Either path will eventually lead to the sample applications provided in the SDK — these samples will be invaluable in your quest for Android mastery. The samples include:
Source code and resources for these applications are available in the SDK (samples/) as well as online: http://code.google.com/android/samples/
Here are some suggestions on what to do next:
Put these sample applications through their paces; and if you get stuck, please post your questions to the Android Developers Discussion Group.