[Eee Pad Transformer Android Development] shirioko:
Logcat:

E/AndroidRuntime( 1810): FATAL EXCEPTION: main
E/AndroidRuntime( 1810): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cyanogenmod.trebuchet/com.cyanogenmod.trebuchet.Launcher}: android.view.InflateException: Binary XML file line #44: Error inflating class com.android.launcher2.Workspace
E/AndroidRuntime( 1810): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2304)
E/AndroidRuntime( 1810): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2354)
E/AndroidRuntime( 1810): at android.app.ActivityThread.access$600(ActivityThread.java:150)
E/AndroidRuntime( 1810): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244)
E/AndroidRuntime( 1810): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 1810): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime( 1810): at android.app.ActivityThread.main(ActivityThread.java:5191)
E/AndroidRuntime( 1810): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 1810): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 1810): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
E/AndroidRuntime( 1810): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
E/AndroidRuntime( 1810): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 1810): Caused by: android.view.InflateException: Binary XML file line #44: Error inflating class com.android.launcher2.Workspace
E/AndroidRuntime( 1810): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:698)
E/AndroidRuntime( 1810): at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
E/AndroidRuntime( 1810): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
E/AndroidRuntime( 1810): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
E/AndroidRuntime( 1810): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
E/AndroidRuntime( 1810): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)
E/AndroidRuntime( 1810): at android.app.Activity.setContentView(Activity.java:1881)
E/AndroidRuntime( 1810): at com.cyanogenmod.trebuchet.Launcher.onCreate(Launcher.java:394)
E/AndroidRuntime( 1810): at android.app.Activity.performCreate(Activity.java:5104)
E/AndroidRuntime( 1810): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
E/AndroidRuntime( 1810): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2258)
E/AndroidRuntime( 1810): ... 11 more
E/AndroidRuntime( 1810): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.android.launcher2.Workspace" on path: /system/app/Trebuchet.apk
E/AndroidRuntime( 1810): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
E/AndroidRuntime( 1810): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
E/AndroidRuntime( 1810): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
E/AndroidRuntime( 1810): at android.view.LayoutInflater.createView(LayoutInflater.java:552)
E/AndroidRuntime( 1810): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
E/AndroidRuntime( 1810): ... 21 more
W/ActivityManager( 772): Force finishing activity com.cyanogenmod.trebuchet/.Launcher
W/ActivityManager( 772): Activity pause timeout for ActivityRecord{41124900 u0 com.cyanogenmod.trebuchet/.Launcher}
I/ActivityManager( 772): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10000000 cmp=com.cyanogenmod.trebuchet/.Launcher} from pid 0

EDIT:

It seems that the problem was caused by flashing the add-on package after the gapps package. Flashing gapps afterward solved it.

So the correct flashing order is:

0.2.0 >> 4.2 add-ons >> 4.2 gapps :)