Impression share for specific keywords - Google says it is possible

[pavlovapete]

On the Adwords blog entry [adwords.blogspot.com...] it is written:

...you can make more informed decisions and get answers to question like...What's my impression share for the specific keywords I'm using?

Is this a typo? Or can I really find out the impression share for specific keywords? If so how?

Thanks

[Rehan]

Create a separate campaign for each keyword? :-)

[pavlovapete]

Ummm - maybe not? :)