I just received this email from Google:

Hello,

We’re sorry to inform you that, beginning May 6, we will no longer host AdWords Business Pages for mobile ads. As of that date, the product will be retired due to low usage. This means that all mobile Business Pages content will be removed, and any ads you have that link to an AdWords Business Page for mobile will stop running.
 

To continue running mobile ads after May 6, you’ll need to direct them to a different mobile landing page or to a phone number. For suggestions on how to create a new mobile landing page for your ads, visit http://adwords.google.com/support/bin/answer.py?answer=138513. For directions on creating a “click-to-call” mobile ad that links to your phone number, visit http://adwords.google.com/support/bin/answer.py?answer=32541.
 

We decided on this change after much consideration, and we apologize for any inconvenience it might cause you.
 

Sincerely,
The Google AdWords Team

As a reminder, here’s a guide to make a quick WordPress mobile site if you want to either move your Google mobile page, or test out mobile advertising.