Why I won't be able to mail hotmail accounts anymore

If this pans out, I (and may of your friends) will no longer be able to mail to Hotmail without being tagged as SPAM mail. So, for those of you who use hotmail (and there's about 9 of you in my addressbook) may want to take this opportunity to move to using GMail, as I will no longer send mail to Hotmail. That goes doubly for you, Mom and Dad. :)