490‘Initial interface orientation’ setting in Info.plisy

The Informatin Property List of iPhone Applications has the optional setting of Initial interface orientation. Is a NSString type, I was wondering, which values were supported, bzw required. Luckily, auto-complete is your friend. For completeness’ sake, here are the accepted values: Portrait (top home button) Portrait (bottom home button) Landscape (left home button) Landscape (right home button)