National Advertisers Get Click To Call Phone Numbers In Mobile Ads

Google Mobile has announced that former click to call number in local ads will go national.
Just like the local advertisers, National advertisers will be able to include a Click to call number, making it easier for consumers and customers to get in touch with providers of services and goods easily, specially the roaming mobile customers. With the new program, advertisers can ad a national phone number to the last line of ad text for any existing or new campaigns.
The Inside AdWords blog has more in deapth information.
Official Google Mobile Blog: Click-to-Call Phone Numbers in Mobile Ads for National Advertisers

Google AdWords "Go Mobile!"

Adwords Go Mobile snapvoip.blogspot.com
With the explosion of mobile web activities fueled by very wide range of mobile devices and phone like iPhone and the newest and my favorite Google's own Nexus One will set phases for many industries. One such of course will be web advertising for mobiles.
Google AdWords will be publishing a series of articles, weekly devoted to Mobile Advertising, dubbed "Go Mobile!" series on inside AdWords blog.
Inside AdWords: Welcome to our "Go Mobile!" Series