Both Barry and Adam Parikh (who originally posted the story) have info on a possible new Google Keyword Tool through Adwords. Adam's got a screen cap of what he encountered that he's posted it on adamap, but not more elaboration.
Barry didn't see the numbers, but did see a version of this as little green bars representing the searches and competitiveness, when he logged into his account. I'm going to have to see if Greg can fill me in on if he's seen this in the last few days, since I'm buried in my SEO work/research.
Although this is a good sign that Google's wanting to supply more tools to advertisers, I question the value. From my point of view it is no more valuable than the Yahoo!/Overture tool, which only gives you the last month's data. In a way it can "fool" you into believing either a word is popular or not popular, because it doesn't give you the historical aspect of the keyword.
Just because Yahoo! only gives the last month's data, doesn't mean that Google should do the same.
One of them should step up to the plate and give advertisers a true tool, with a full year's worth of data. Google actually does provide the data. However, Trellian's Keyword Discovery, is probably the best tool out there for grasping the true opportunities you could have with a keyword across all of the search engines.