Today, we're releasing Google Services for Websites, a few more tools that your hosting company can now enable to help you improve your website. This expanded program includes Webmaster Tools, AdSense, Custom Search, and Site Search, making it easier to drive traffic to your site, monetize your site through the Google ad network, and add various search capabilities to help your visitors find information on your site faster.
Seems like a savvy, and potentially revenue-increasing move. Note that the web host needs to participate for this program to be available: "...a few more tools that your hosting company can now enable to help you improve your website."
The Custom Search Engine is one service that might be a real boon. A CSE is not all that easy for the non-technical site owner to set up right now, and if this service makes it easier, that's a good thing.