C++0x Concepts - Dead?

[Walter Bright]

bearophile wrote:
> C++0x Concepts are too much complex for the advantages they offer.
> Can't they replace Concepts with something similer like D constraints?

D (constraints) + (static if) + (pragma msg) can do everything that 
Concepts do but one thing - checking of the template body against the 
constraint. My opinion is the latter is of low importance.

Anyhow, Andrei suggested this a while back to them and was ignored.