Personally, I would find this feature useful, but I am not a C++ expert by any means. ;-)
Do you think this would be a useful feature to add to the TR, and then later the standard after C++14? Let me know if you have any alternative suggestions within the currently available or already planned feature set to address this issue.
Oh, and if you do not know what this all means, here you can find the explanation of a good reference design: http://static.rust-lang.org/doc/tutorial.html#borrowed-pointers