Android store app release. Delete original app then replace with same named app with different keystore?

Question

Is it possible to delete an app from the Android store we developed, since we lost the original keystore, and then publish a new app to the store with the same "com.myname.myappname" but with a different signed certificate/keystore?

Would the app update for the user? Or would they just get a warning the app can't be updated, or what happens?

Answer 1

Nothing. Read the documentation: Publishing Updates on Android Market

Before uploading the updated application, be sure that you have incremented the android:versionCode and android:versionName attributes in the <manifest> element of the manifest file. Also, the package name must be the same and the .apk must be signed with the same private key. If the package name and signing certificate do not match those of the existing version, Market will consider it a new application and will not offer it to users as an update.