Android :: Android - Manifest TargetSdkVersion Change - Icon Not Visible - Widget No Longer Works - Cannot Access Data

I recently upgraded my Android app to support multiple resolutions. Previously, my Android.manifest file had a line:

To support multiple density and resolution devices, I changed this to:

CODE:............

I then added a couple of new directories, like drawable-hdpi-v4 and drawable-long-hdpi-v4 that includes the high-res versions of the graphics. That's about it.

Ever since releasing this update, there have been a decent number of users complaining about various problems:

the app icon doesn't appear (I did not create a high res version of the icon)
the home screen widget no longer works, even if they delete and re-add it (this code did not change with the update). I've had a user send me their error log, which shows:

CODE:................

There is one questionable section in my existing widget code that may be relevant:

CODE:..........

And perhaps most troublesome: the sqlite database is no longer accessible/writeable for some users so their data is no longer available. I did add the WRITE_EXTERNAL_STORAGE permission to the manifest. This is only happening to certain users and it tends to be HTC Eris users. In that error log I see things such as:

CODE:.........

It's as if the update has caused a new process and it can't access the old process's data, or something.