Hi,
personally, I have only minor comments, like only 2011 as Copyright year for new files, and please also regtest on a gnu-linux system.Ping for: http://gcc.gnu.org/ml/gcc-patches/2011-06/msg00440.html
Before going ahead, however, you should send the patch also to the libstdc++ mailing list (this is the rule for v3 patches) and make sure the other maintainers don't have further comments. Wait, say, at least a couple of days.
Thanks, Paolo. PS: no regenerated files in the diffs.