.NET 4.5 Beta DbGeography NotImplementedException
var x = DbGeography.PointFromText(string.Format("POINT({0} {1})", -45, 45), 4326);

System.NotImplementedException: The method or operation is not implemented.
at System.Data.Spatial.DefaultSpatialServices.GeographyPointFromText(String geographyText, Int32 spatialReferenceSystemId)