The standard for 3D CAD, ANSI 14.41, has been released for more than five years.  However, the major CAD vendors appear to be implementing it in bits and pieces.  For example, Pro/E captures annotation in both 3D and 2D mode, but it doesn’t allow a user in 3D to understand and use the annotations created in 2D.

It would appear that one of the unspoken challenges to the adoption of the model-based enterprise is the fact that so many people do not really understand GD&T.  Thus, when you combine a 3D view of a part with all sorts of feature control frames, for many users it ends up looking like a painting from Salvador Dali.