Yahoo announced this morning their beta launch of sponsored search results on their mobile web service in the US and UK. This will allow Yahoo! Advertisers to reach searchers on their cell phones and other mobile devices.
The beta launch will allow a select group of advertisers to post their sponsored ads to the mobile marketplace. While this service is not yet available to the general business person, it is certainly a step in that direction.
Ads will allow you to direct consumers to either a mobile landing page, courtesy of Yahoo which can display your company info and phone number, or to a mobile site of your own.
Yahoo already has a Mobile Web service available throughout the US and UK with a browser-based service designed specifically for the mobile market. Incorporation of paid ads seems like a natural progression. For more information on Yahoo Mobile visit http://searchmarketing.yahoo.com/mobile