In 2004 BillG made a statement that spam will be solved in two years. In 2008 I can prove that it is.
Here's how my Inbox looks today.
That's 19,326 spam message caught in the last 30 days. Not a single spam slipped through and nothing was falsely flagged.
What he wouldn't be happy about though is that it wasn't his team that solved it but the guys over at GMail.
The Windows Live Mail client, unfortunately, flags my own messages as Junk.