ITU G.992.5 Annex M - ADSL2+M Questions

[Luke Marrott <luke.marrott () gmail com>]

I've been looking up information on the Annex M Standard today and am unable
to find any ISPs in the US offering this.

Can anyone tell me if there are providers in the US using the Annex M
standards and increased upstream with it, or if not is there a good reason
why its not being done yet?

Thanks!

:Luke Marrott