Could virtual billboards one day show up in Google Street View?

A few months ago, Google gave a presentation to marketing and ad agency types in Europe as part of an event called "Above and Beyond 2009," an educational seminar/infomercial on how Google can help get their clients' messages out to the public. One of the presentations was on the exploding opportunities in mobile advertising, something with which Google is clearly obsessed these days.

Google muses about ads in Street View Picture3610x437
It might have been just a trial balloon, but last year Google floated the idea of putting ads in Street View. (Credit: Google)