What does this mean?  Is the class supported on Windows Phone?  Am I just not reading it right?

http://msdn.microsoft.com/en-us/library/system.globalization.hebrewcalendar(VS.95).aspx

Platform Notes

Silverlight for Windows Phone:

This type is present but is not supported on Windows Phone.

Version Information

---

Silverlight

Supported in: 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.0