[T-Mobile myTouch 4G Slide] tbalden:
Tested Foursquare, this is what happens:

W/dalvikvm( 6069): threadid=1: thread exiting with uncaught exception (group=0x40ac9300)
E/AndroidRuntime( 6069): FATAL EXCEPTION: main
E/AndroidRuntime( 6069): java.lang.NullPointerException
E/AndroidRuntime( 6069):	at com.foursquare.core.fragments.AbsListFragment.a(SourceFile:216)
E/AndroidRuntime( 6069):	at com.joelapenna.foursquared.fragments.app.BaseListFragment.a(SourceFile:132)
E/AndroidRuntime( 6069):	at com.joelapenna.foursquared.fragments.MainFragment.k(SourceFile:546)
E/AndroidRuntime( 6069):	at com.joelapenna.foursquared.fragments.app.BaseListFragment.onCreateOptionsMenu(SourceFile:93)
E/AndroidRuntime( 6069):	at android.support.v4.app.Watson.onCreatePanelMenu(SourceFile:56)
E/AndroidRuntime( 6069):	at com.actionbarsherlock.ActionBarSherlock.callbackCreateOptionsMenu(SourceFile:559)
E/AndroidRuntime( 6069):	at com.actionbarsherlock.internal.ActionBarSherlockNative.dispatchCreateOptionsMenu(SourceFile:60)
E/AndroidRuntime( 6069):	at com.actionbarsherlock.app.SherlockFragmentActivity.onCreatePanelMenu(SourceFile:165)
E/AndroidRuntime( 6069):	at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:412)
E/AndroidRuntime( 6069):	at com.android.internal.policy.impl.PhoneWindow.invalidatePanelMenu(PhoneWindow.java:766)
E/AndroidRuntime( 6069):	at com.actionbarsherlock.internal.ActionBarSherlockNative.dispatchInvalidateOptionsMenu(SourceFile:49)
E/AndroidRuntime( 6069):	at com.actionbarsherlock.app.SherlockFragmentActivity.invalidateOptionsMenu(SourceFile:150)
E/AndroidRuntime( 6069):	at com.actionbarsherlock.app.SherlockFragmentActivity.supportInvalidateOptionsMenu(SourceFile:156)
E/AndroidRuntime( 6069):	at android.support.v4.app.Fragment.setHasOptionsMenu(SourceFile:763)
E/AndroidRuntime( 6069):	at com.foursquare.core.fragments.AbsListFragment.onCreate(SourceFile:64)
E/AndroidRuntime( 6069):	at com.joelapenna.foursquared.fragments.MainFragment.onCreate(SourceFile:167)
E/AndroidRuntime( 6069):	at android.support.v4.app.Fragment.performCreate(SourceFile:1437)
E/AndroidRuntime( 6069):	at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:877)
E/AndroidRuntime( 6069):	at android.support.v4.app.FragmentManagerImpl.moveToState(SourceFile:1088)
E/AndroidRuntime( 6069):	at android.support.v4.app.BackStackRecord.run(SourceFile:682)
E/AndroidRuntime( 6069):	at android.support.v4.app.FragmentManagerImpl.execPendingActions(SourceFile:1444)
E/AndroidRuntime( 6069):	at android.support.v4.app.FragmentManagerImpl$1.run(SourceFile:429)
E/AndroidRuntime( 6069):	at android.os.Handler.handleCallback(Handler.java:615)
E/AndroidRuntime( 6069):	at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime( 6069):	at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime( 6069):	at android.app.ActivityThread.main(ActivityThread.java:4931)
E/AndroidRuntime( 6069):	at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 6069):	at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 6069):	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
E/AndroidRuntime( 6069):	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:558)
E/AndroidRuntime( 6069):	at dalvik.system.NativeStart.main(Native Method)

looks like an app bug, but i'll ask around if anyone else on 4.1.2 Cm-10 has this on other devices