Maybe, your "AndroidManifest.xml" is wrong.
Replace it with properly working "AndroidManifest.xml".
[2011-08-05 13:43:02 - ktFreeProj_from_ndk_sample] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.hellojni/.entryPoint }
[2011-08-05 13:43:02 - ktFreeProj_from_ndk_sample] ActivityManager: Error type 3
[2011-08-05 13:43:02 - ktFreeProj_from_ndk_sample] ActivityManager: Error: Activity class {com.example.hellojni/com.example.hellojni.entryPoint} does not exist.