Forrester Research Says that 12.3 million people will be listening to podcasts in 2010

Forrester Research Defines The Future Of Digital Audio — New Report Forecasts Growth Of Satellite Radio And Podcasting: “Podcasting, which is the newest entrant into the digital audio mix, will see significant growth by 2010 — reaching 12.3 million households — as MP3 adoption climbs and broadband reaches 62 percent of households.” Personally I think that it will be higher than this — but then again a lot of this depends on when Howard Stern and Sirius will begin offering podcast downloads of his day old content. Seems like a no brainer.