Why was the definition of a variable changed in the latest C++0x draft?

Question

n3035 says:

A variable is introduced by the declaration of an object. The variable's name denotes the object.

n3090 says:

A variable is introduced by the declaration of a reference other than a non-static data member or of an object. The variable's name denotes the reference or object.

I wonder what motivated this change. Does it have to do with rvalue references?

Answer 1

The change was in response to CWG defect 633. The list of changes related to this can be found in n2993:

The goal of these changes is to expand the meaning of "variable" to encompass both named objects and references, and to apply the term consistently wherever feasible.