rassnor: Same with me, problems logging into steam since Friday, weird internet speeds come and go. I had thought it was a isolated issue with steam. Good to know a fix is coming.
I too have been experiencing the same issue.
Found this link on the Vodafone Forums...
I've tried it from both a residential land line broadband connection, and a business land line broadband connection with the same issues.
DL'ing (when it works) from Steam at 3K/sec is not very nice.