I would like to link to Android Marketplace from within my app so I can send my user to write a review. I already know how to link to the Android Marketplace with a WebView, but this doesn't really set the user up to write a review. I need to open up Marketplace on the device and go to purchase/review page for the app.
Similar to Tim's answer, but this will take the user directly to your app (rather than search results.
You can read more about the Market Intent here.
Uri marketUri = Uri.parse("market://details?id=" + getPackageName()); startActivity(new Intent.ACTION_VIEW).setData(marketUri);
(Note: Assumes your activity is in the same package as declared in your application's manifest. Otherwise, just hardcode your package instead of using