Am I the only one that ever used this? No wonder they did away with it then.

Yup, I used that tool as well. It was pretty handy. I haven't found a replacement.

Best way I measure commerciality of a KW is to check what the CPC value is through the google keyword tool.

Chances are if its a keyword generating decent volume of traffic but going for ~.30 or less, probably not worth your time.

Obviously you gotta use a bit of fuzzy logic here, but you can get a guesstimate to see what that search phrase is worth.