NO… hasn’t worked for years… I have been telling people this for at least 2 years!

Q: Does Google ever use the “keywords” meta tag in its web search ranking?

A: In a word, no. Google does sell a Google Search Appliance, and that product has the ability to match meta tags, which could include the keywords meta tag. But that’s an enterprise search appliance that is completely separate from our main web search. Our web search (the well-known search at Google.com that hundreds of millions of people use each day) disregards keyword metatags completely. They simply don’t have any effect in our search ranking at present.

via Official Google Webmaster Central Blog: Google does not use the keywords meta tag in web ranking.