Cloning an application with its full data store between devices
Solution one: TitaniumBackup
Both devices must be rooted and use TitaniumBackup application. I have found that Titanium doesn't start on Emulator 2.1
Solution two: use adb backup options
Use adb backup and adb restore properly. This would mean to restrict the backup to the single app to be cloned, including its data, but nothing else. This is important as adb restore &lt;file.ab&gt; is an all-or-nothing, no selective restore possible. Full syntax for adb backup is:
adb backup [-f &lt;file&gt;] [-apk|-noapk] [-shared|-noshared] [-all] [-system|nosystem] [&lt;packages...&gt;]

So to only have our &quot;Foobar&quot; app included, we need to connect the device and:
adb backup -f MyBackup.ab -apk com.foobar.app

This done, and adb connected to the emulator, the generated backup file MyBackup.ab then can be restored using
adb restore MyBackup.ab