Missing feature in Microsoft Dynamics NAV: BlobRef

One thing I have always missed in Navision/Dynamics NAV is BlobRef. We have RecordRef to access record, FieldRef to access fields (Not BLOB content) and KeyRef to access keys…

https://drupal.org/files/images/the_blob.jpg

So how do we access BLOB content dynamic ?

What I would be 100% content with, are CREATEINSTREAM and CREATEOUTSTREAM methods on a FieldRef and be done with it, but a full blow BlobRef implementation would also work..

Or am I missing a way to do this ?