[c++0x] _Tuple_impl and typename reference_wrapper<T>::type&&

[Paolo Carlini]

... by the way, returning to tuple in the c++0x framework after some
time, I see that indeed quite a bit of work is needed in order to
decently implement the current specifications... I'm working on that, as
I said, but if you have something ready, don't be afraid to propose it
for review: in this specific area of experimental C++0x features we  are
allowed some extra time for gcc4.3.

Thanks,
Paolo.