The stock contacts app of Android 2.3. (and older versions) had a filter that displays only contacts with a phone number, accessible under
Menu -> Display Options -> Only contacts with phones.
This seems to be gone in android 4. The other display options moved to
Menu -> Settings, but this one is missing. It's also not under
Menu -> Contacts to display.
Does anybody know if this option still exists and where it is if thats the case?