Keyword Tool updated with search volume data

Here is the latest news from google! This is great!

Based on advertiser feedback, and our commitment to provide useful tools and information for our advertisers, we've now added search volume data to the Keyword Tool.
Now, when you use the Keyword Tool to search for relevant keywords to
include in your keyword list, you'll be able to see the approximate
number of search queries matching your keywords that were performed on
Google and the search network.
These approximate numbers are intended to provide better insight into
keywords' monthly and average search volumes than previously provided
by the tool.

Here's a screenshot of the updated Keyword Tool:

(Click the image for a full-size version)

You
can view the new statistics by looking at the Keyword Tool's Approx
Search Volume columns. Search volume data can be useful to you in
several ways, including:

• Account structure: You may
  want to create a new ad group around high-traffic keywords that you
  find particularly relevant. Closely target ad text and a specific
  landing page to the small, narrowly-focused set of similar keywords
  you've found through the Keyword Tool.
  
  
• Budget planning: See how much traffic is available to your keywords so you can better plan your budget.
  
  
• Keyword choice: Search for and select the relevant keywords most likely to return quality leads within your budget.
  

Remember, the Keyword Tool also provides several other keyword-related metrics
that can help you select highly relevant keywords to improve the
overall performance of your campaigns. You can easily view data on
advertiser competition, search volume trends, estimated average CPCs,
and estimated ad positions for keywords.

To learn more about using the Keyword Tool, please see this article from the AdWords Help Center