The Overture keyword brainstorming tool stopped offering current keyword data as of January 2007. There was not even a notice on the page with the tool until very recently. If you do any keyword searches now, you will see that the page says: "searches done in January 2007":
http://inventory.overture.com/d/searchi ... uggestion/
This is also important if you use keyword research software programs or tools that rely on the Overture database.
There is a new at WordTracker (different from their free trial option) and I am in the process of testing those results...