Some points that I tend to forget:
- double check your
minSdkVersion
in the manifest
- test your app on an emulator with your
minSdkVersion
- let your friends test your app to see if it is self-explanatory
If you are going to provide updates in your app:
- you might want to add some kind of 'Whats new in this version'-dialog
- backup your old version!
- don't forget to increase
versionCode
and versionName
in your manifest